Question: What collection of paintings by Van Gogh included his painting Irises, which was one of several painting of irises?
Sentence (from "Saint-Paul Asylum, Saint-Rémy (Van Gogh series)"): During much of his stay there he was confined to the grounds of the asylum, and he made paintings of the garden, the enclosed wheat field that he could see outside his room and a few portraits of individuals at the asylum.
Relevant evidence: No