Complex sentence: Although some gains were made along Sausage Valley south of La Boiselle, the village itself remained in German hands, and by the end of the first day the badly mauled 34th was relieved by 19th Division.
Split into simpler sentences: Although some gains were made along Sausage Valley south of La Boiselle, the village itself remained in German hands. At the end of the first day the badly mauled 34th was relieved by 19th Division.