A person laying on the grass, in the shade, underneath a tree.
A person is sufferring from heatstroke and needed to lie under the shade to cool off.
Just because a person is lying underneath the tree doesn't mean this person is suffering from a heatstroke.
exists e1 x1 x2 x3 x4 x5.(n_shade(x4) & n_grass(x3) & a_topic(x1) & underneath(e1,x5) & n_tree(x5) & in(e1,x4) & on(e1,x3) & Actor(e1,x2) & v_lay(e1) & (x1 = x2) & n_person(x1))
exists e1 e2 p1 p2 x1 x2 x3 x4 x5.(n_shade(x5) & Topic(e2,p2) & exists e4 s1.(a_off(s1) & Manner(e4,s1) & Actor(e4,x3) & v_cool(e4)) & Topic(e2,p1) & Actor(e2,x4) & v_need(e2) & exists e3.(under(e3,x5) & Actor(e3,x4) & v_lie(e3)) & n_person(x4) & n_person(x3) & from(e1,x2) & n_heatstroke(x2) & Actor(e1,x1) & v_sufferr(e1) & n_person(x1))