Highly productive radical for characters dealing with children, kinship, and generations: 字 (character), 孔 (hole), 孕 (pregnant), 孙 (grandchild), 学 (study), 季 (season), 孤 (orphan), 孩 (child). The graph is a pictograph of a wrapped infant — head, swaddled body, arms not yet visible. Usually sits below or to the left in compounds.