Does "It was, however, already there to be seen." contain the correct answer to "What did Mahan believe he was innovating?"

A: no

Does "By then the language had developed a literary tradition, and since then it has changed little; journals from that period have no substantial differences from modern standard Czech, and contemporary Czechs can understand them with little difficulty." contain the correct answer to "Journals from the 18th century have no substantial differences from what?"

A: yes

Does "Early the following year, Senator Heinz was killed in a plane crash near Lower Merion." contain the correct answer to "Who is Kerry's 2nd wife?"

A:
no