Ladies attending a medical seminar.
Ladies attending for medical checkup
The ladies can't be attending a seminar and a checkup at the same time.
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_attend(e1) & n_seminar(x3) & a_medical(s1) & Theme(s1,x3) & (x1 = x2) & n_lady(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & for(e1,x3) & n_checkup(x3) & a_medical(s1) & Theme(s1,x3) & Actor(e1,x2) & v_attend(e1) & (x1 = x2) & n_lady(x1))