Annotating Event Mentions in Text with Modality, Focus, and Source Information 論文 Suguru Matsuyoshi・Megumi Eguchi・Chitose Sao・Koji Murakami・Kentaro Inui・Yūji Matsumoto ·2010-05-01 ·pp. 1456-1463 doi:10.63317/4edzr3nkjvy7