A young girl is being assisted in drinking out of a glass.
A young girl is drinking water from a cup while she sits alone.
Being assisted implies there is another person involved. One cannot be alone and assisted at the same time.
exists e2 e1 s1 x1 x2.(in(e1,e2) & of(e2,x2) & n_glass(x2) & r_out(e2) & Actor(e2,x1) & v_drink(e2) & Theme(e1,x1) & v_assist(e1) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 s1 x1 x2 x3.(exists e2 s2.(a_alone(s2) & Manner(e2,s2) & Actor(e2,x1) & v_sit(e2)) & n_female(x1) & while(e1,p1) & from(e1,x3) & n_cup(x3) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & n_water(x2) & n_girl(x1) & a_young(s1) & Theme(s1,x1))