Read the following paragraph and determine if the hypothesis is true:

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".

OPT: +Yes; +It's impossible to say; +No;
Hypothesis: Journey to the west was writen by someone who was alive
Yes