Does the sentence "Meanwhile, Andreas Papandreou founded the Panhellenic Socialist Movement (PASOK) in response to Karamanlis's conservative New Democracy party, with the two political formations alternating in government ever since." provide a valid answer to the question "What does PASOK stand for?"

A: yes

Does the sentence "Unhappy with this change of policy by the Portuguese government, Napoleon sent an army to invade Portugal." provide a valid answer to the question "How many troops did Napoleon send to begin the invasion of Portugal?"

A: no

Does the sentence "Morocco is recognised by many historians as the oldest degree-granting university in the world, having been founded in 859 by Fatima al-Fihri." provide a valid answer to the question "When was al-Qarawiyin University founded?"

A: yes

Does the sentence "She also took a collection of two hundred letters from Sand to Chopin; after 1851 these were returned to Sand, who seems to have destroyed them." provide a valid answer to the question "Who ended up with the 200 letters from Sand to Chopin?"

A:
yes