Question: What was the series inspired by the appreciation of manual laborers that Wheat Field with Cypresses is a part of?
Sentence (from "Wheat Field with Cypresses"): All were executed at the Saint-Paul-de-Mausole mental asylum at Saint-Rémy near Arles, France, where Van Gogh was voluntarily a patient from May 1889 to May 1890.
Relevant evidence: No