Task: Question Answering
Input (English): passage: Uncle (from Latin: avunculus the diminutive of avus ``grandfather'') is a male family relationship or kinship within an extended or immediate family. An uncle is the brother, half-brother, step-brother, or brother-in-law of one's parent, or the husband of one's aunt. The specific terms for the last three respectively are half-uncle, stepuncle and uncle-in-law which can refer also to the husband of one's aunt. A biological uncle is a second degree male relative and shares 25% genetic overlap. However people who are not a biological uncle, are sometimes affectionately called as an uncle, as a title of admiration and respect.
 question: is there such a thing as a half uncle?
Output (English): Yes