The plants or shrubs have not been trimmed and are overgrown.
The plants at the park are overgrown because the groundskeeper has died.
There is no indication about shrubs not being trimmed implies the groundskeeper dying.
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 x3.(n_groundskeeper(x3) & n_park(x2) & n_plant(x1) & exists e2.(Actor(e2,x3) & v_die(e2)) & because(e1,p1) & Theme(e1,x1) & v_overgrow(e1) & at(x1,x2))