A student in a black shirt is intently taking notes in class.
A student writes down the chemistry formulas.
The notes the student is writing may not be chemistry, they could be from any class which she or he is enrolled in.
exists e1 s1 s2 x1 x2 x3 x4.(a_intently(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & in(x3,x4) & n_class(x4) & n_note(x3) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_student(x1))
exists e1 x1 x2 x3.(n_formula(x2) & of(x2,x3) & n_chemistry(x3) & down(e1,x2) & Actor(e1,x1) & v_write(e1) & n_student(x1))