Three little blond-haired girls eating snacks indoors.
Girls are inside.
Three girls may be referred to as just 'girls.' Indoors means the same thing as inside.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_eat(e1) & n_indoor(x3) & of(x3,x4) & n_snack(x4) & (x1 = x2) & n_girl(x1) & a_blond-haired(s2) & Theme(s2,x1) & a_little(s1) & Theme(s1,x1) & card_eq_3(x1))
exists e1 s1 x1.(a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_be(e1) & n_girl(x1))