There are two women waving one hand and wearing white shirts, scarves, sunglasses, white gloves, and stewardess hats.
Two stewardesses explain how the plane's saftey systems work.
Two women wearing stewardess hats are not necessarily stewardesses and are not necessarily explaining saftey systems.
exists p1 x1 e2 e1 s1 s2 s3 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11.((x1 = x2) & rel(x2,x7) & rel(x7,x8) & rel(x8,x9) & subset_of(x11,x9) & n_hat(x11) & a_stewardess(s3) & Theme(s3,x11) & subset_of(x10,x9) & n_glove(x10) & a_white(s2) & Theme(s2,x10) & n_sunglass(x8) & n_scarf(x7) & Theme(e2,x6) & Actor(e2,x5) & v_wear(e2) & n_shirt(x6) & a_white(s1) & Theme(s1,x6) & (x2 = x5) & Theme(e1,x4) & Actor(e1,x3) & v_wave(e1) & n_hand(x4) & card_eq_1(x4) & (x2 = x3) & n_woman(x2) & card_eq_2(x2))
exists e1 s1 x1 x2 x3 x4 x5.(n_work(x3) & of(x3,x5) & n_system(x5) & of(x3,x4) & n_saftey(x4) & of(x3,x2) & n_plane(x2) & a_how(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_explain(e1) & n_stewardess(x1) & card_eq_2(x1))