Problem: Does "The eagerness of Vikings in the Danelaw to communicate with their southern Anglo-Saxon neighbors produced a friction that led to the erosion of the complicated inflectional word-endings." answer the question "What parts of English grammar declined as a result of Old Norse influence?"

A: yes

Problem: Does "Lords and kings supported entourages of fighters who formed the backbone of the military forces.[I] Family ties within the elites were important, as were the virtues of loyalty, courage, and honour." answer the question "Along with loyalty and honor, what virtue did the elite value?"

A: yes

Problem: Does "Whereas most easy listening music was instrumental, created by relatively unknown artists, and rarely purchased, AC was an attempt to create a similar "lite" format by choosing certain tracks (both hit singles and album cuts) of popular artists." answer the question "Easy listening was predominately what type of music?"

A:
yes