The plants or shrubs have not been trimmed and are overgrown.
Someone is trying to trim the plants
The plants not being trimmed doesn't mean that someone is there to trim them.
exists s1 x1 x2.((n_plant(x2) | n_shrub(x2)) & (n_plant(x1) | n_shrub(x1)) & Theme(s1,x2) & a_overgrown(s1) & -exists e1.(Theme(e1,x1) & v_trim(e1)))
exists e1 p1 x1 x2.(n_plant(x2) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_trim(e2)) & n_person(x1))