请问人格类型后面这个c是什么意思啊？ (豆瓣 INTP小组)

{"entityMap": {"0": {"type": "IMAGE", "data": {"caption": "", "id": "223270060", "src": "https://img3.doubanio.com/view/group_topic/l/public/p223270060.jpg"}, "mutability": "IMMUTABLE"}, "1": {"type": "IMAGE", "data": {"caption": "", "id": "223270064", "src": "https://img3.doubanio.com/view/group_topic/l/public/p223270064.jpg"}, "mutability": "IMMUTABLE"}}, "blocks": [{"text": " ", "entityRanges": [{"length": 1, "key": 0, "offset": 0}], "depth": 0, "key": "1", "inlineStyleRanges": [], "type": "atomic"}, {"text": " ", "entityRanges": [{"length": 1, "key": 1, "offset": 0}], "depth": 0, "key": "2", "inlineStyleRanges": [], "type": "atomic"}]}