Complex sentence: The cave was originally excavated by Ludwig Kohl-Larsen and his wife Margit in their 1934 to 1936 expedition where they found abundant artifacts assemblages, rock art, and burials.
Split into simpler sentences: The cave was originally excavated by Ludwig Kohl-Larsen and his wife Margit in their 1934 to 1936 expedition. They found abundant artifacts, rock art, and burials.