A woman is sitting on the floor on a purple mat, looking at pictures.
The woman sits on a yoga mat while compiling an album.
Just because the woman is sitting on a purple mat, it doesn't mean it is a yoga mat.
exists e1 e2 s1 x1 x2 x3 x4.(n_floor(x2) & for(e1,e2) & at(e2,x4) & n_picture(x4) & Actor(e2,x1) & v_look(e2) & on(e1,x3) & n_mat(x3) & a_purple(s1) & Theme(s1,x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
exists e1 e2 x1 x2 x3 x4.(n_woman(x1) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_compile(e2) & n_album(x4) & on(e1,x2) & n_mat(x2) & of(x2,x3) & n_yoga(x3) & Actor(e1,x1) & v_sit(e1))