Does "Since the 19th century, many if not all presidents were assisted by a central figure or "gatekeeper", sometimes described as the President's Private Secretary, sometimes with no official title at all." contain the correct answer to "What 19th century informal political office did the modern role of White House Chief of Staff correspond to?"

A: yes

Does "In 198 BC, during the Second Macedonian War Philip was decisively defeated at Cynoscephalae by the Roman proconsul Titus Quinctius Flamininus and Macedon lost all its territories in Greece proper." contain the correct answer to "When did Philip form and alliance with Hannibal of Carthage?"

A: no

Does "The inflection of determinatives is complex, specially because of the high number of elisions, but is similar to the neighboring languages." contain the correct answer to "What type of word is added to the contraction of the preposition?"

A:
no