An artist creating a pottery while wearing an apron.
A human has clothes on.
An artist is a human. Wearing an apron requires clothes to be on.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x2) & v_wear(e2) & n_apron(x4) & Theme(e1,x3) & Actor(e1,x2) & v_create(e1) & n_pottery(x3) & (x1 = x2) & n_artist(x1))
exists e1 s1 x1 x2.(a_on(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_clothes(x2) & n_human(x1))