A dentist patient is having his teeth looked at
A patient is at the dentist.
The dentist patient having teeth looked at means the man is at the dentist.
exists e2 e1 x1 x2 x3 x4 x5.(at(e2,x5) & n_thing(x5) & Actor(e2,x1) & v_look(e2) & Theme(e1,x4) & Actor(e1,x3) & v_have(e1) & n_tooth(x4) & of(x4,x1) & n_male(x1) & (x1 = x3) & n_patient(x1) & of(x1,x2) & n_dentist(x2))
exists p1 x1 x2.(n_dentist(x2) & at(x1,x2) & n_patient(x1))