Problem: Does "The United States Air Force (USAF) is the aerial warfare service branch of the United States Armed Forces and one of the seven American uniformed services." answer the question "What is the USAF?"

A: yes

Problem: Does "This represented the worst defeat suffered by the Japanese Army to that date.[citation needed]" answer the question "What was the main cause of death of the Japanese troops?"

A: no

Problem: Does "The canal is 193.30 km (120.11 mi) long, 24 m (79 ft) deep and 205 metres (673 ft) wide as of 2010." answer the question "How deep is Suez canal?"

A:
yes