Being exposed to hot sun like this can cause skin cancer.
sunscreen lotion can prevent skin cancer
The fact that hot sun causes causes skin cancer doesn't determine that sunscreen can prevent the cancer.
exists e1 e2 p1 s1 x1 x2.(exists e3 x3 x4.(Theme(e3,x3) & Actor(e3,e1) & v_cause(e3) & n_cancer(x3) & of(x3,x4) & n_skin(x4)) & Topic(e2,p1) & Actor(e2,e1) & v_can(e2) & to(e1,x2) & like(x2,x1) & n_thing(x1) & n_sun(x2) & a_hot(s1) & Theme(s1,x2) & Theme(e1,x1) & v_expose(e1))
exists e1 p1 x1 x2.(exists e2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_prevent(e2) & n_cancer(x3) & of(x3,x4) & n_skin(x4)) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1) & n_lotion(x1) & of(x1,x2) & n_sunscreen(x2))