sentences:  Neither of these teachers was an experienced photographer, and their attempts to produce photographs were largely failures.Nevertheless, in turn they taught wet-collodion process to Maeda and his fellow students, who included Furukawa Shumpei, Kawano Teizō, Ueno Hikoma, and Horie Kuwajirō, among others.When Swiss photographer Pierre Rossier arrived in Japan in 1858 on a commission from "Negretti and Zambra", Maeda was instructed to assist and accompany him and to further learn photography.