Problem: Does "Of the city's residents, 32 percent reported having no vehicles available while 23 percent had two or more vehicles available, as of 2013[update]." answer the question "What percent are vacant as of 2013?"

A: no

Problem: Does "The negative aspect is the maintenance and short life problems caused by the commutator." answer the question "What component of a universal motor is most likely to fail?"

A: yes

Problem: Does "Perry used his superior firepower to force Japan to open its borders to trade." answer the question "What technology helped the downfall of samurai?"

A:
no