Input: Printed circuit board
Cordwood construction can save significant space and was often used with wire-ended components in applications where space was at a premium (such as missile guidance and telemetry systems) and in high-speed computers, where short traces were important. In cordwood construction, axial-leaded components were mounted between two parallel planes. The components were either soldered together with jumper wire, or they were connected to other components by thin nickel ribbon welded at right angles onto the component leads. To avoid shorting together different interconnection layers, thin insulating cards were placed between them. Perforations or holes in the cards allowed component leads to project through to the next interconnection layer. One disadvantage of this system was that special nickel-leaded components had to be used to allow the interconnecting welds to be made. Differential thermal expansion of the component could put pressure on the leads of the components and the PCB traces and cause physical damage (as was seen in several modules on the Apollo program). Additionally, components located in the interior are difficult to replace. Some versions of cordwood construction used soldered single-sided PCBs as the interconnection method (as pictured), allowing the use of normal-leaded components.

What do insulating cards prevent between interconnection layers?
Output: shorting

Input: Symbiosis
Adaptation of the endosymbiont to the host's lifestyle leads to many changes in the endosymbiont–the foremost being drastic reduction in its genome size. This is due to many genes being lost during the process of metabolism, and DNA repair and recombination. While important genes participating in the DNA to RNA transcription, protein translation and DNA/RNA replication are retained. That is, a decrease in genome size is due to loss of protein coding genes and not due to lessening of inter-genic regions or open reading frame (ORF) size. Thus, species that are naturally evolving and contain reduced sizes of genes can be accounted for an increased number of noticeable differences between them, thereby leading to changes in their evolutionary rates. As the endosymbiotic bacteria related with these insects are passed on to the offspring strictly via vertical genetic transmission, intracellular bacteria goes through many hurdles during the process, resulting in the decrease in effective population sizes when compared to the free living bacteria. This incapability of the endosymbiotic bacteria to reinstate its wild type phenotype via a recombination process is called as Muller's ratchet phenomenon. Muller's ratchet phenomenon together with less effective population sizes has led to an accretion of deleterious mutations in the non-essential genes of the intracellular bacteria. This could have been due to lack of selection mechanisms prevailing in the rich environment of the host.

What is the term that describes the way the endosymbiont can't go back to its original phenotype?
Output: Muller's ratchet phenomenon

Input: Dissolution of the Soviet Union
On December 12, the Supreme Soviet of the Russian SFSR formally ratified the Belavezha Accords and renounced the 1922 Union Treaty. The Russian deputies were also recalled from the Supreme Soviet of the USSR. The legality of this action was questionable, since Soviet law did not allow a republic to unilaterally recall its deputies. However, no one in either Russia or the Kremlin objected. Any objections from the latter would have likely had no effect, since the Soviet government had effectively been rendered impotent long before December. In effect, the largest and most powerful republic had seceded from the Union. Later that day, Gorbachev hinted for the first time that he was considering stepping down.

Who was recalled?
Output: Russian deputies

Input: Chihuahua (state)
The earliest evidence of human inhabitants of modern day Chihuahua was discovered in the area of Samalayuca and Rancho Colorado. Clovis points have been found in northeastern Chihuahua that have been dated from 12,000 BC to 7000 BC. It is thought that these inhabitants were hunter gatherers. Inhabitants of the state later developed farming with the domestication of corn. An archeological site in northern Chihuahua known as Cerro Juanaqueña revealed squash cultivation, irrigation techniques, and ceramic artifacts dating to around 2000 BC.

Around what year were the ceramic artifacts found to have been from?
Output:
2000 BC