A boy and his younger brother playing together at the playground.
There are people playing outdoors.
A boy and his brother are people. Being at a playground implies they are outdoors.
exists e1 s1 s2 s3 x1 x2 x3 x4.(n_playground(x4) & a_topic(s1) & subset_of(x2,s1) & at(e1,x4) & a_together(s3) & Manner(e1,s3) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_brother(x2) & r_more(s2) & a_younger(s2) & Theme(s2,x2) & of(x2,x1) & n_male(x1) & subset_of(x1,s1) & n_boy(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_outdoors(x4) & (x2 = x3) & n_people(x2))