Input: Read this: Much of the early paper made from wood pulp contained significant amounts of alum, a variety of aluminium sulfate salts that is significantly acidic. Alum was added to paper to assist in sizing, making it somewhat water resistant so that inks did not "run" or spread uncontrollably. Early papermakers did not realize that the alum they added liberally to cure almost every problem encountered in making their product would eventually be detrimental. The cellulose fibres that make up paper are hydrolyzed by acid, and the presence of alum would eventually degrade the fibres until the paper disintegrated in a process that has come to be known as "slow fire". Documents written on rag paper were significantly more stable. The use of non-acidic additives to make paper is becoming more prevalent, and the stability of these papers is less of an issue.
Question: What acidic salts were uncommonly found in the early types of paper produced?

Output: unanswerable


QUES: When a state limits its treaty obligations through reservations, other states party to that treaty have the option to accept those reservations, object to them, or object and oppose them. If the state accepts them (or fails to act at all), both the reserving state and the accepting state are relieved of the reserved legal obligation as concerns their legal obligations to each other (accepting the reservation does not change the accepting state's legal obligations as concerns other parties to the treaty). If the state opposes, the parts of the treaty affected by the reservation drop out completely and no longer create any legal obligations on the reserving and accepting state, again only as concerns each other. Finally, if the state objects and opposes, there are no legal obligations under that treaty between those two state parties whatsoever. The objecting and opposing state essentially refuses to acknowledge the reserving state is a party to the treaty at all.

When a state adds reservations to a treaty, other parties to the treaty can respond to those reservations in what ways?
What is the answer?
ANS: accept those reservations, object to them, or object and oppose them


QUES: Thrombolysis involves the administration of medication that activates the enzymes that normally destroy blood clots. Thrombolysis agents include streptokinase, reteplase, alteplase, and tenecteplase. If no contraindications are present (such as a high risk of bleeding), thrombolysis can be given in the pre-hospital or in-hospital setting. When given to people suspected of having a STEMI within 6 hours of the onset of symptoms, thrombolytic drugs save the life of 1 in 43 who received them. The risks were major bleeding (1 in 143) and brain bleeding (1 in 250). It is unclear whether pre-hospital thrombolysis reduces death in people with STEMI compared to in-hospital thrombolysis. Pre-hospital thrombolysis reduces time to thrombolytic treatment, based on studies conducted in higher income countries.
What enzymes in the body typically destroy blood clots?

ANS: unanswerable


Despite plans of expanding into other global regions and product segments, Dell was heavily dependent on U.S. corporate PC market, as desktop PCs sold to both commercial and corporate customers accounted for 32 percent of its revenue, 85 percent of its revenue comes from businesses, and Sixty-four percent of its revenue comes from North and South America, according to its 2006 third-quarter results. U.S. shipments of desktop PCs were shrinking, and the corporate PC market which purchases PCs in upgrade cycles had largely decided to take a break from buying new systems. The last cycle started around 2002, three or so years after companies started buying PCs ahead of the perceived Y2K problems, and corporate clients were not expected to upgrade again until extensive testing of Microsoft's Windows Vista (expected in early 2007), putting the next upgrade cycle around 2008. Heavily depending on PCs, Dell had to slash prices to boost sales volumes, while demanding deep cuts from suppliers.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What percentage of Dell's profits were laptop PCs being sold to commercial and corporate buyers?
Ah, so.. unanswerable


Question: On 21 December 2011 the bank instituted a programme of making low-interest loans with a term of three years (36 months) and 1% interest to European banks accepting loans from the portfolio of the banks as collateral. Loans totalling €489.2 bn (US$640 bn) were announced. The loans were not offered to European states, but government securities issued by European states would be acceptable collateral as would mortgage-backed securities and other commercial paper that can be demonstrated to be secure. The programme was announced on 8 December 2011 but observers were surprised by the volume of the loans made when it was implemented. Under its LTRO it loaned €489bn to 523 banks for an exceptionally long period of three years at a rate of just one percent. The by far biggest amount of €325bn was tapped by banks in Greece, Ireland, Italy and Spain. This way the ECB tried to make sure that banks have enough cash to pay off €200bn of their own maturing debts in the first three months of 2012, and at the same time keep operating and loaning to businesses so that a credit crunch does not choke off economic growth. It also hoped that banks would use some of the money to buy government bonds, effectively easing the debt crisis.
Try to answer this question if possible: Which countries borrowed the least after the loan program was announced?
Answer: unanswerable


QUES: Despite some concerns, western vegetarians and vegans have not been found to suffer from overt zinc deficiencies any more than meat-eaters. Major plant sources of zinc include cooked dried beans, sea vegetables, fortified cereals, soyfoods, nuts, peas, and seeds. However, phytates in many whole-grains and fiber in many foods may interfere with zinc absorption and marginal zinc intake has poorly understood effects. The zinc chelator phytate, found in seeds and cereal bran, can contribute to zinc malabsorption. There is some evidence to suggest that more than the US RDA (15 mg) of zinc daily may be needed in those whose diet is high in phytates, such as some vegetarians. These considerations must be balanced against the fact that there is a paucity of adequate zinc biomarkers, and the most widely used indicator, plasma zinc, has poor sensitivity and specificity. Diagnosing zinc deficiency is a persistent challenge.
What is the only way that vegetarians and vegans obtain zinc?

ANS:
unanswerable