location: html > body > div:nth-of-type(1) > section > div > div > div:nth-of-type(2) > article > p:nth-of-type(58)
text: If the group_by field of a point is an array (e.g. "document_id": ["a", "b"]), the point can be included in multiple groups (e.g. "document_id": "a" and document_id: "b").