Question: Irises is part of a series of paintings that Van Gogh completed while he was an inpatient at asylum during what period?
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