Sentence 1: Moulthrop began experimenting with hypertext theory in the 1980s , and has since authored several articles as well as written many hypertext fiction works .
Sentence 2: Moulthrop began experimenting with the hypertext theory in the 1980s and has since written several articles as well as numerous hypertext - fiction - works .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?