Problem: Text: The ECA's official mission statement was to give a boost to the European economy: to promote European production, to bolster European currency, and to facilitate international trade, especially with the United States, whose economic interest required Europe to become wealthy enough to import US goods. Another unofficial goal of ECA (and of the Marshall Plan) was the containment of growing Soviet influence in Europe, evident especially in the growing strength of communist parties in Czechoslovakia, France, and Italy.

Question: was the marshall plan an example of containment?

OPTIONS:
- no
- yes
A: yes

Problem: Text: The acids in wine are an important component in both winemaking and the finished product of wine. They are present in both grapes and wine, having direct influences on the color, balance and taste of the wine as well as the growth and vitality of yeast during fermentation and protecting the wine from bacteria. The measure of the amount of acidity in wine is known as the ''titratable acidity'' or ''total acidity'', which refers to the test that yields the total of all acids present, while strength of acidity is measured according to pH, with most wines having a pH between 2.9 and 3.9. Generally, the lower the pH, the higher the acidity in the wine. However, there is no direct connection between total acidity and pH (it is possible to find wines with a high pH for wine and high acidity). In wine tasting, the term ''acidity'' refers to the fresh, tart and sour attributes of the wine which are evaluated in relation to how well the acidity balances out the sweetness and bitter components of the wine such as tannins. Three primary acids are found in wine grapes: tartaric, malic and citric acids. During the course of winemaking and in the finished wines, acetic, butyric, lactic and succinic acids can play significant roles. Most of the acids involved with wine are fixed acids with the notable exception of acetic acid, mostly found in vinegar, which is volatile and can contribute to the wine fault known as volatile acidity. Sometimes, additional acids, such as ascorbic, sorbic and sulfurous acids, are used in winemaking.

Question: is tartaric acid the same as citric acid?

OPTIONS:
- no
- yes
A: no

Problem: Text: The appointment and confirmation of Justices to the Supreme Court of the United States involves several steps set forth by the United States Constitution, which have been further refined and developed by decades of tradition. Candidates are nominated by the President of the United States and must face a series of hearings in which both the nominee and other witnesses make statements and answer questions before the Senate Judiciary Committee, which can vote to send the nomination to the full United States Senate. Confirmation by the Senate allows the President to formally appoint the candidate to the court.

Question: can the president appoint justices to the supreme court?

OPTIONS:
- no
- yes
A:
yes