Does the sentence "The difference this made to the effectiveness of air defences is questionable." provide a valid answer to the question "How were AA defenses improved?" OPTIONS:
- yes
- no

A: no

Does the sentence "In the early hours of 7 December (Hawaiian time), Japan launched a major surprise carrier-based air strike on Pearl Harbor without explicit warning, which crippled the U.S. Pacific Fleet, leaving eight American battleships out of action, 188 American aircraft destroyed, and 2,403 American citizens dead." provide a valid answer to the question "How many Americans died in the Pearl Harbor attacks?" OPTIONS:
- yes
- no

A: yes

Does the sentence "Richmond is not home to any major league professional sports teams, but since 2013, the Washington Redskins of the National Football League have held their summer training camp in the city." provide a valid answer to the question "What is the home ground of the Richmond Kickers?" OPTIONS:
- yes
- no

A: no

Does the sentence "Despite the recognition of women's aptitudes during the Abbasid dynasty, all these came to an end in Iraq with the sack of Baghdad in 1258." provide a valid answer to the question "When was formal education for Islamic women halted?" OPTIONS:
- yes
- no

A:
yes