Children gathered around an adult
The children are alone with no adults.
Either they are alone or around an adult.
exists e1 x1 x2.(ne_nam_children(x1) & around(e1,x2) & n_adult(x2) & Actor(e1,x1) & v_gather(e1))
exists p1 s1 x1.(n_child(x1) & a_alone(s1) & Manner(p1,s1) & -exists x2.(with(x1,x2) & n_adult(x2)))