Problem: Does "They found that both sleep offset and melatonin offset are more strongly correlated with phase markers than the onset of sleep." answer the question "When is the melatonin onset?"

A: no

Problem: Does "The 1775 treatise "The Natural Varieties of Mankind", by Johann Friedrich Blumenbach proposed five major divisions: the Caucasoid race, Mongoloid race, Ethiopian race (later termed Negroid, and not to be confused with the narrower Ethiopid race), American Indian race, and Malayan race, but he did not propose any hierarchy among the races." answer the question "What type of transition was noted from one group to the next?"

A: no

Problem: Does "Currently the tallest building in San Diego is One America Plaza, standing 500 feet (150 m) tall, which was completed in 1991." answer the question "What bank spent time as being the tallest building in San Diego?"

A:
no