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 "Irises (painting)"): Irises is one of several paintings of irises by the Dutch artist Vincent van Gogh, and one of a series of paintings he executed at the Saint Paul-de-Mausole asylum in Saint-Rémy-de-Provence, France, in the last year before his death in 1890.
Relevant evidence: Yes