Three students, all wearing black t-shirts, are standing and looking into a microscope.
The three students are participating in an anatomy and physiology lab.
Although they are standing and looking into a microscope, it does not imply they are participating in a lab.
exists e1 e2 x1 x2 x3 x4 x5.(into(e2,x5) & n_microscope(x5) & Actor(e2,x3) & v_look(e2) & all x7 e4 s2.((n_t-shirt(x7) & a_black(s2) & Theme(s2,x7) & Actor(e4,x7) & v_wear(e4)) -> subset_of(x7,x3)) & subset_of(x4,x3) & n_student(x4) & card_eq_3(x4) & Actor(e1,x1) & v_stand(e1) & all e3 s1 x6.((n_t-shirt(x6) & a_black(s1) & Theme(s1,x6) & Actor(e3,x6) & v_wear(e3)) -> subset_of(x6,x1)) & subset_of(x2,x1) & n_student(x2) & card_eq_3(x2))
exists e1 x1 x2 x3 x4 x5.(n_student(x1) & card_eq_3(x1) & in(e1,x2) & n_lab(x4) & of(x4,x5) & n_physiology(x5) & n_anatomy(x3) & subset_of(x4,x2) & subset_of(x3,x2) & Actor(e1,x1) & v_participate(e1))