Problem: Does "In 838 the end of the imperial-sanctioned missions to Tang China, which had begun in 630, marked the effective end of Chinese influence." answer the question "In what year did Emperor Kanmu die?"

A: no


Problem: Does "Jack Brickhouse manned the Cubs radio and especially the TV booth for parts of five decades, the 34-season span from 1948 to 1981." answer the question "Who manned the Cubs radio and TV booth for parts of five decades?"

A: yes


Problem: Does "Greek colonies and communities have been historically established on the shores of the Mediterranean Sea and Black Sea, but the Greek people have always been centered around the Aegean and Ionian seas, where the Greek language has been spoken since the Bronze Age." answer the question "Where have the centers of culture been located for the Grecian world historically ?"

A:
no