１回目：stop_n_top = 5 , stop_min_freq = 3 , min_edge_frequency = 3
２回目：stop_n_top = 10 , stop_min_freq = 3 , min_edge_frequency = 3
stopwords追加 ".","%","％","ない","たち","これ","的"
カスタム名詞追加 専売公社,会議,会社,未成年者,部分,自分
３回目：stop_n_top = 10 , stop_min_freq = 6 , min_edge_frequency = 3
stopwords追加 ".","%","％","ない","たち","これ","的"
カスタム名詞追加 専売公社,会議,会社,未成年者,部分,自分
※課題で使用した画像はどれも２回目のものです