Alan, Barbara, and Simonee play the piano,
obeo, and violin, but not the necessarily in that
order. Each plays only one instrument
Also:

1)Alan is not the piano player.
2) The Piano player and the obeo player are teachers.
3) Barbara is not a teacher.

11: Who plays the obeo?
(F) Alan
(G) Barbara
(H) Simionee
(J) Either Alan or Barbara, but there is not
enough information to determine
which one.
(K) Could Be Alan, Bara or Simionee,
but there is not enough information to
determine which one.