No doubt I am very dense, but I cannot see what the proximity of the coast has got to do with the murder of Mrs. Inglethorp."
The proximity of the coast has nothing do with Mrs. Inglethorp's murder.
mnli hypothesis: The proximity of the coast has nothing do with Mrs. Inglethorp's murder. premise: No doubt I am very dense, but I cannot see what the proximity of the coast has got to do with the murder of Mrs. Inglethorp."