Tristan Da Cunha, one of the new graduates starting Cates, Katalinic  and  Lund asked with a shrug, furrowing his brow as if the question had never come up. 
Tristan did not know if the question has come up before.
mnli hypothesis: Tristan did not know if the question has come up before. premise: Tristan Da Cunha, one of the new graduates starting Cates, Katalinic  and  Lund asked with a shrug, furrowing his brow as if the question had never come up. 