Core decks vs extensive reading

@FlameseeK: If you must be picky with words from shirokuma, you can skip adding any words that relate to Panda's diet. He pretty much mentions how much he loves bamboo and bamboo grass/leaves in almost every episode. Actually, a lot of what he says in general is pretty repetitive (he's tired, he wants bamboo leaves, he calls himself cute, he wants to go on a diet, etc) though he has thrown some surprises in his dialog from time to time xD