Can we draw the following hypothesis from the context (see options)?

Context:

Saiyuki ( , Saiyuki ) is a manga series by Kazuya Minekura which was serialized in "G-Fantasy" from 1997 to 2002. It spawned multiple manga sequels, anime adaptations, video games and other media. The story is loosely based on the Chinese novel "Journey to the West".

Hypothesis: Saiyuki has some differences to the story "Journey to the West"
Choose from:
1). Yes;
2). It's impossible to say;
3). No;
1).