A woman pushes a child in a stroller with several people on bikes behind.
A mother is being chased by an angry hoard of cyclists
People on bikes behind a woman doesn't mean she's being chased. They could feel any emotion; they're not necessarily angry.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_behind(s2) & Manner(e1,s2) & with(e1,x4) & on(x4,x5) & n_bike(x5) & n_people(x4) & a_several(s1) & Theme(s1,x4) & in(e1,x3) & n_stroller(x3) & Theme(e1,x2) & Actor(e1,x1) & v_push(e1) & n_child(x2) & n_woman(x1))
exists e1 s1 x1 x2 x3.(Actor(e1,x2) & of(x2,x3) & n_cyclist(x3) & n_hoard(x2) & a_angry(s1) & Theme(s1,x2) & Theme(e1,x1) & v_chase(e1) & n_mother(x1))