A parked motorcycle sits among other parked motorcycles.
there are a group of motorcylces outside
A motorcycle with other motorcycles makes up a group of motorcycles, and they are parked so they are outside.
exists e1 s1 s2 s3 x1 x2.(among(e1,x2) & -(x2 = x1) & n_motorcycle(x1) & n_motorcycle(x1) & a_parked(s3) & Theme(s3,x1) & n_motorcycle(x2) & a_parked(s2) & Theme(s2,x2) & Actor(e1,x1) & v_sit(e1) & a_parked(s1) & Theme(s1,x1))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2 x3.((x1 = x2) & of(x2,x3) & n_motorcylce(x3) & n_group(x2)))