Problem: Does "The giant mosaic, commissioned by Cardinal Jacopo Stefaneschi, was originally situated on the eastern porch of the old basilica and occupied the whole wall above the entrance arcade facing the courtyard." answer the question "Who commissioned the Navicella mosaic?"

A: yes

Problem: Does "The Nederlander Organization, the largest controller of Broadway productions in New York City, originated with the purchase of the Detroit Opera House in 1922 by the Nederlander family." answer the question "In what year was the Detroit Opera House purchased?"

A: yes

Problem: Does "Homo erectus is theorized to have evolved more than 1.8 million years ago, and by 1.5 million years ago had spread throughout Europe and Asia." answer the question "How many millions of years ago had Homo erectus spread throughout Europa and Asia?"

A:
yes