Does the sentence "After five weeks, Napoleon and his army left." provide a valid answer to the question "How long did Napoleon stay in Moscow before leaving?"

A: yes

Does the sentence "An antenna transmits and receives radio waves with a particular polarization which can be reoriented by tilting the axis of the antenna in many (but not all) cases." provide a valid answer to the question "When might the size of an antenna cause an issue?"

A: no

Does the sentence "Relations with the U.S. improved as a result, while UK Prime Minister Tony Blair met with Gaddafi in the Libyan desert in March 2004." provide a valid answer to the question "What world leader notably visited Libya in 2002?"

A: no

Does the sentence "Europeans came to the Delaware Valley in the early 17th century, with the first settlements founded by the Dutch, who in 1623 built Fort Nassau on the Delaware River opposite the Schuylkill River in what is now Brooklawn, New Jersey." provide a valid answer to the question "Who claimed the entire Delaware River?"

A:
no