The animals coexist peacefully.
The animals never have problems with each other.
Just because the animals coexist doesn't mean they never have problems with each other.
exists x1 x2.(n_coexist(x1) & of(x1,x2) & n_animal(x2) & a_topic(x1) & r_peacefully(x1))
exists e1 s1 x1 x2.(n_animal(x1) & a_never(s1) & Manner(e1,s1) & all x3.(n_other(x3) -> with(e1,x3)) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_problem(x2))