Does the sentence "It was complemented by a program called "Grand Challenges Explorations" (2011 to 2013 with some follow-up grants reaching until 2015) which involved grants of US$100,000 each in the first round." provide a valid answer to the question "What is the aim of reinvent the toilet"

A: no

Does the sentence "In 1971 the Database Task Group delivered their standard, which generally became known as the "CODASYL approach", and soon a number of commercial products based on this approach entered the market." provide a valid answer to the question "When were DBMSs first used commercially?"

A: no

Does the sentence "A golf course also exists and the possibility for sportfishing tourism is great." provide a valid answer to the question "What is the tourist industry mostly based around?"

A: no

Does the sentence "Kerry thus won the Democratic nomination to run for President of the United States against incumbent George W. Bush." provide a valid answer to the question "Who won the 2004 Iowa Democratic Caucus?"

A:
no