There are five relatives A, B, C, D, and E  4 of them each talked about a real situation, as follows: 1 B is my father's brother, 2 E is my mother-in-law, 3 C is my son-in-laws brother, 4 A is me brother's wife  Everyone mentioned above is one of these five people (for example, My father and My father's brother in 1
are one of the five people A, B, C, D, E )
A is B's wife