Problem: The Left Switch<br>Parker had been trying to learn guitar. No matter what he did he couldn't seem to get it very well. Then he realized that he was playing right handed. Parker was left handed so he decided to try switching. To his delight this helped him to play much better.

Based on the paragraph above can we conclude that "Parker had been trying to learn bass guitar."?

A: It's impossible to say

Problem: Nil Fyodorovich Filatov (Russian: , 2 June[O.S. 21 May]1847 , or 16 April[O.S. 4 April]1847 , 8 February[O.S. 26 January]1902 ) was a physician who is considered the founder of Russian paediatrics. His nephew Vladimir Filatov was a prominent ophthalmologist.

Based on the paragraph above can we conclude that "Nil Fyodorovich Filatov can speak several languages"?

A: It's impossible to say

Problem: Castro's successful visits to Harlem and the Bronx, his speech to the United Nations General Assembly, and the October 21 march of 3,000 against U.S. policy and subsequent picket lines at Cuba's UN mission in defense of the revolution - all these events dealt blows to the U.S. government's unceasing efforts to isolate and slander Cuba.

Based on the paragraph above can we conclude that "Castro wanted to get along with America but America didn't play fair."?

A:
It's impossible to say