A man sitting on the floor arranges fake orange birds and some fake flowers.
A man sitting on the floor is arranging fake birds and flowers.
A man sitting on the floor is identical with a man sitting on the floor, "is arranging" is the present progressive form of "arranges", and "fake birds and flowers" is a summarized restatement of "fake orange birds and some fake flowers."
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(n_floor(x3) & Theme(e2,x4) & Actor(e2,x1) & v_arrange(e2) & subset_of(x7,x4) & n_flower(x7) & a_fake(s2) & Theme(s2,x7) & subset_of(x5,x4) & n_bird(x5) & of(x5,x6) & n_orange(x6) & a_fake(s1) & Theme(s1,x5) & on(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(n_floor(x3) & Theme(e2,x4) & Actor(e2,x1) & v_arrange(e2) & n_flower(x6) & n_bird(x5) & subset_of(x6,x4) & subset_of(x5,x4) & a_fake(s1) & Theme(s1,x4) & on(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))