Problem: Does "In 1910, over 2 million children in the same age group were employed in the United States." answer the question "What did children roll in a factory?"

A: no

Problem: Does "Boston has an area of 89.6 square miles (232.1 km2)48.4 square miles (125.4 km2) (54.0%) of land and 41.2 square miles (106.7 km2) (46.0%) of water." answer the question "How many square miles of land is Boston?"

A: yes

Problem: Does "It is thought that annelids were originally animals with two separate sexes, which released ova and sperm into the water via their nephridia." answer the question "How many sexes of annelids were there originally?"

A:
yes