( Some ( ( had ( to ( move ( into shelters ) ) ) ) . ) )
(ROOT (S (NP (DT Some)) (VP (VBD had) (S (VP (TO to) (VP (VB move) (PP (IN into) (NP (NNS shelters))))))) (. .)))
Some had to move into shelters.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (PRP it)) (VP (VBZ rains)))) (, ,) (NP (DT some) (NNS animals)) (VP (MD will) (VP (VB move) (S (VP (TO to) (VP (VB seek) (NP (NN shelter))))))) (. .)))