Muslims riding their bicycles down a busy street.
A group is outdoors.
Muslims is plural, so a group is implied. A street indicates outdoors.
exists e1 s1 s2 x1 x2 x3.(ne_nam_muslims(s1) & a_topic(s1) & down(e1,x2) & n_street(x2) & a_busy(s2) & Theme(s2,x2) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x3) & of(x3,x2) & n_thing(x2) & (s1 = x1))
exists p1 x1.(exists x2.((x1 = x2) & n_outdoors(x2)) & n_group(x1))