A crowd of possible supporters or protesters holding signs and fliers up.
A crowd of anti abortion protesters gather with signs and fliers
If a group is of supporters or protestors then it cannot be assumed that they are definitely protesting something, and even if they are that does mean they are anti abortion protestors.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & a_up(s2) & Manner(e1,s2) & Theme(e1,x4) & Actor(e1,x3) & v_hold(e1) & subset_of(x6,x4) & n_flier(x6) & subset_of(x5,x4) & n_sign(x5) & (x2 = x3) & (n_supporter(x2) | n_protester(x2)) & a_possible(s1) & Theme(s1,x2) & n_crowd(x1))
exists e1 s1 x1 x2 x3 x4 x5 x6.(with(e1,x4) & subset_of(x6,x4) & n_flier(x6) & subset_of(x5,x4) & n_sign(x5) & Actor(e1,x1) & v_gather(e1) & of(x1,x2) & n_protester(x2) & of(x2,x3) & n_abortion(x3) & a_anti(s1) & Theme(s1,x2) & n_crowd(x1))