Does the sentence "In 1956, following the declaration of the Imre Nagy government of withdrawal of Hungary from the Warsaw Pact, Soviet troops entered the country and removed the government." provide a valid answer to the question "In which year did Hungary attempt to leave the Warsaw Pact?"

A: yes

Does the sentence "It has a claimed date of 1189, based on the fact it is constructed on the site of the Nottingham Castle brewhouse; the present building dates from around 1650." provide a valid answer to the question "When was a pub documented as existing on the current site of the Nags Head?"

A: no

Does the sentence "Another plausible etymology proposes that the term Somali is derived from the Arabic for "wealthy" (dhawamaal), again referring to Somali riches in livestock." provide a valid answer to the question "From whom are several Somali clans descended?"

A: no

Does the sentence "In doing so, they tried discrediting tribal leaders as agents of the old regime, and in August 1971 a Sabha military court tried many of them for counter-revolutionary activity." provide a valid answer to the question "What were tribal leaders accused of in 1971?"

A:
yes