A big group of students surrounding a storm trooper.
Storm troopers surround students.
One storm trooper cannot be multiple storm troopers.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_surround(e1) & n_trooper(x4) & of(x4,x5) & n_storm(x5) & (x2 = x3) & n_student(x2) & n_group(x1) & a_big(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_surround(e1) & n_student(x3) & n_trooper(x1) & (x1 = x2) & ne_nam_storm(x2))