Complex sentence: It is also the home of Professor Oak, as well as Professor Oak's family; the player-named rival in the games, Gary Oak in the anime, and Blue in "Pokémon Adventures" is the grandson of the Professor.
Split into simpler sentences: It is also the home of Professor Oak, as well as Professor Oak's family. The player-named rival in the games, Gary Oak in the anime, and Blue in "Pokémon Adventures" is the grandson of the Professor.