What does the word ", " mean

In the following sentence which word is abstract noun quincy insisted that each one of his teammate members demonstrate loyalty members team quincys loyalty

What else do you think experts can learn from studying the language of written work? what do you think is the value of studying the language of william shakespeare whose writing is over hundreds of years old?

Reread lines 6-7 "the survivor." determine how the tone of these differs from the preceding lines (1-5)