The man on the brown surfboard has created a large splash that soaks the two other surfers standing by.
A human standing
Each of the two surfers are human; standing by is another way to say standing.
exists e2 e1 e3 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(-(x5 = x6) & n_surfer(x6) & n_surfer(x5) & card_eq_2(x5) & n_surfboard(x2) & a_brown(s1) & Theme(s1,x2) & n_man(x1) & Theme(e3,x3) & Actor(e3,x1) & v_create(e3) & Theme(e2,x5) & Actor(e2,x4) & v_soak(e2) & a_by(s3) & Manner(e1,s3) & Actor(e1,x7) & v_stand(e1) & (x5 = x7) & (x3 = x4) & n_splash(x3) & a_large(s2) & Theme(s2,x3) & on(x1,x2))
exists s1 x1.(a_topic(x1) & n_standing(x1) & a_human(s1) & Theme(s1,x1))