A girl in a gray t-shirt is sitting in a chair.
A girl is sitting on the sofa watching TV.
The girl can be either sitting on a chair or sofa.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_chair(x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_t-shirt(x2) & a_gray(s1) & Theme(s1,x2) & n_girl(x1))
exists e2 e1 x1 x2 x3.(n_sofa(x2) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_watch(e2) & n_tv(x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1))