By looking at pictures, guess the 成语 chengyu. This is the 1st chengyu game from the Chinese zodiac themed collection.

曾孙 is the Chinese kinship term for paternal great-grandson. Search the family tree for the paternal grandson's son's mother!

孙媳妇 is the Chinese kinship term for paternal granddaughter-in-law . Search the family tree for the paternal grandson's wife's daughter