premise: Laurence Alma-Tadema (born Laurense Tadema, 1865–1940), was an English novelist and poet of the late 19th and early 20th centuries who worked in many genres. Eldest daughter of the Dutch painter Lawrence Alma-Tadema (1836–1912) and his first wife Marie-Pauline Gressin Dumoulin, she was born in Brussels.
hypothesis: Alma-Tadema was born 16 years after 1850.
reason: Alma-Tadema is listed to be born on 1865, 15 years after 1850.