A ballerina dances in front of cement walls and pillars, she has her left foot on her toe on the ground, with the other above her head in a "V" shape and her arms raised.
A ballerina is practicing Swan Lake.
There is a ballerina dancing in front of cement walls and pillars but that doesn't mean she's dancing Swan Lake, she could be doing many other dances or practicing steps.
exists e2 e1 p1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16.(n_ground(x16) & n_toe(x15) & of(x15,x2) & n_female(x2) & n_female(x2) & n_female(x2) & n_female(x2) & n_female(x2) & n_foot(x14) & a_left(s2) & Theme(s2,x14) & of(x14,x2) & n_arm(x7) & of(x7,x2) & n_head(x3) & of(x3,x2) & n_other(x2) & in(e1,x9) & of(x9,x10) & subset_of(x13,x10) & exists e3.(on(e3,x16) & Theme(e3,x14) & Actor(e3,x2) & v_have(e3) & on(x14,x15)) & that(x13,p1) & n_pillar(x13) & subset_of(x11,x10) & n_wall(x11) & of(x11,x12) & n_cement(x12) & n_front(x9) & with(e1,x2) & above(x2,x3) & Theme(e2,x8) & Actor(e2,x5) & v_raise(e2) & (x3 = x8) & subset_of(x7,x5) & subset_of(x6,x5) & n_shape(x6) & in(x3,x4) & ne_nam_v(x4) & a_''(s1) & Theme(s1,x4) & Actor(e1,x1) & v_dance(e1) & n_ballerina(x1))
exists e1 x1 x2 x3.(ne_per_lake(x2) & (x2 = x3) & ne_per_swan(x3) & Theme(e1,x2) & Actor(e1,x1) & v_practice(e1) & n_ballerina(x1))