A teacher, wearing a checkered shirts, writes on the chalkboard.
There is a person writing something.
The chalkboard is something to write on.
exists e1 e2 s1 x1 x2 x3 x4.(n_chalkboard(x4) & on(e2,x4) & Actor(e2,x1) & v_write(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_checkered(s1) & Theme(s1,x3) & (x1 = x2) & n_teacher(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_write(e1) & n_thing(x4) & (x2 = x3) & n_person(x2))