Does the sentence "When Bell mentioned to Gardiner Hubbard and Thomas Sanders that he was working on a method of sending multiple tones on a telegraph wire using a multi-reed device, the two wealthy patrons began to financially support Bell's experiments." provide a valid answer to the question "Thomas Edison and what other scientist were already asked to work on a better telegraph?"

A: no

Does the sentence "By 1990, the Census Bureau included more than a dozen ethnic/racial categories on the census, reflecting not only changing social ideas about ethnicity, but the wide variety of immigrants who had come to reside in the United States due to changing historical forces and new immigration laws in the 1960s." provide a valid answer to the question "How many African Americans identify as multiracial on the Census of 2002?"

A: no

Does the sentence "Classes are held in Green Hall at W 15th St and Burdick Dr, which is named after former dean James Green." provide a valid answer to the question "The University of Kansas had the highest rated law school in which state?"

A: no

Does the sentence "The single approach beam along which the bomber tracked was monitored by a ground controller." provide a valid answer to the question "Who operated the automatic beam system?"

A:
no