Does the sentence "Conflict between the Germanic tribes and the forces of Rome under Julius Caesar forced major Germanic tribes to retreat to the east bank of the Rhine." provide a valid answer to the question "What emperor forced the Germanic tribes to the east side of the Rhine?"

A: yes

Does the sentence "It is the second largest pay-TV company after the AT&T-DirecTV acquisition, largest cable TV company and largest home Internet service provider in the United States, and the nation's third largest home telephone service provider." provide a valid answer to the question "What merged companies are the largest pay TV entity in the world?"

A: yes

Does the sentence "Although most colonists left after the United States bought the land in 1867, a handful stayed and preserved the Russian language in this region to this day, although only a few elderly speakers of this unique dialect are left." provide a valid answer to the question "When did the US buy Alaska?"

A: yes

Does the sentence "This meant that the electrical recording characteristics of Western Electric licensees such as Columbia Records and Victor Talking Machine Company in the 1925 era had a higher amplitude in the midrange region." provide a valid answer to the question "On which recording types were pre-emphasis used most in the 1920s?"

A:
no