A crowd of people surrounding a woman in white wearing sunglasses.
A crowd of students gathered around their teacher.
All people are not students and it is not necessary that the woman is a teacher.
exists e2 e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_surround(e2) & in(x4,x5) & n_sunglass(x5) & Actor(e1,x5) & v_wear(e1) & a_white(s1) & Theme(s1,x5) & n_woman(x4) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & around(e1,x4) & n_teacher(x4) & of(x4,x1) & n_thing(x1) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_student(x2) & n_crowd(x1))