Input: Article: Since the Carnation Revolution of 1974, which culminated in the end of one of Portugal's most notable phases of economic expansion (that started in the 1960s), a significant change has occurred in the nation's annual economic growth.[citation needed] After the turmoil of the 1974 revolution and the PREC period, Portugal tried to adapt to a changing modern global economy, a process that continues in 2013. Since the 1990s, Portugal's public consumption-based economic development model has been slowly changing to a system that is focused on exports, private investment and the development of the high-tech sector. Consequently, business services have overtaken more traditional industries such as textiles, clothing, footwear and cork (Portugal is the world's leading cork producer), wood products and beverages.

Now answer this question: Since the 90's, how has Portugal's economic development model been changing?

Output: changing to a system that is focused on exports, private investment and the development of the high-tech sector


Article: However, it is important to understand that despite the presence of reception statutes, much of contemporary American common law has diverged significantly from English common law. The reason is that although the courts of the various Commonwealth nations are often influenced by each other's rulings, American courts rarely follow post-Revolution Commonwealth rulings unless there is no American ruling on point, the facts and law at issue are nearly identical, and the reasoning is strongly persuasive.

Question: What differs about American and English law?
Ans: American courts rarely follow post-Revolution Commonwealth rulings


Here is a question about this article: Barcelona won the treble in the 2014–2015 season, winning La Liga, Copa del Rey and UEFA Champions League titles, and became the first European team to have won the treble twice. On 17 May, the club clinched their 23rd La Liga title after defeating Atlético Madrid. This was Barcelona's seventh La Liga title in the last ten years. On 30 May, the club defeated Athletic Bilbao in the Copa del Rey final at Camp Nou. On 6 June, Barcelona won the UEFA Champions League final with a 3–1 win against Juventus, which completed the treble, the club's second in 6 years. Barcelona's attacking trio of Messi, Suárez and Neymar, dubbed MSN, scored 122 goals in all competitions, the most in a season for an attacking trio in Spanish football history.
What is the answer to this question: What team has won the treble competitions  twice?
****
So... Barcelona


The problem: Answer a question about this article:
Some high-speed black-and-white films, such as Ilford Delta 3200 and Kodak T-MAX P3200, are marketed with film speeds in excess of their true ISO speed as determined using the ISO testing method. For example, the Ilford product is actually an ISO 1000 film, according to its data sheet. The manufacturers do not indicate that the 3200 number is an ISO rating on their packaging. Kodak and Fuji also marketed E6 films designed for pushing (hence the "P" prefix), such as Ektachrome P800/1600 and Fujichrome P1600, both with a base speed of ISO 400.
Which two companies produced E6 films meant for "pushing"?
****
The answer: Kodak and Fuji


Problem: Please answer a question about the following article about Frédéric Chopin:
In September 1828 Chopin, while still a student, visited Berlin with a family friend, zoologist Feliks Jarocki, enjoying operas directed by Gaspare Spontini and attending concerts by Carl Friedrich Zelter, Felix Mendelssohn and other celebrities. On an 1829 return trip to Berlin, he was a guest of Prince Antoni Radziwiłł, governor of the Grand Duchy of Posen—himself an accomplished composer and aspiring cellist. For the prince and his pianist daughter Wanda, he composed his Introduction and Polonaise brillante in C major for cello and piano, Op. 3.
When did Chopin visit Berlin?
A: September 1828


Question: Read this and answer the question

In Mexico, Carnival is celebrated in about 225 cities and towns. The largest is in Mazatlán and the city of Veracruz with others in Baja California and Yucatán. The larger city Carnivals employ costumes, elected queens and parades with floats, but Carnival celebrations in smaller and rural areas vary widely depending on the level of European influence during Mexico's colonial period. The largest of these is in Huejotzingo, Puebla where most townspeople take part in mock combat with rifles shooting blanks, roughly based on the Battle of Puebla. Other important states with local traditions include Morelos, Oaxaca, Tlaxcala and Chiapas.

What is the mock combat roughly based on?
Answer:
the Battle of Puebla