A group of people are attending a conference.
A conference has a large attendance.
A group of people can be a large attendance.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_attend(e1) & n_conference(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_attendance(x2) & a_large(s1) & Theme(s1,x2) & n_conference(x1))