( ( Solar cookers ) ( ( ( can also ) ( be ( used ( to ( ( sterilize ( water ( , ( food ( , ( or milk ) ) ) ) ) ) ( -LRB- ( ( ( ( bacteria and ) ( other pathogens ) ) ( are killed ) ) -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Solar) (NNS cookers)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN used) (S (VP (TO to) (VP (VB sterilize) (NP (NN water) (, ,) (NN food) (, ,) (CC or) (NN milk)) (PRN (-LRB- -LRB-) (S (NP (NP (NNS bacteria)) (CC and) (NP (JJ other) (NNS pathogens))) (VP (VBP are) (VP (VBN killed)))) (-RRB- -RRB-)))))))) (. .)))
Solar cookers can also be used to sterilize water, food, or milk (bacteria and other pathogens are killed).
(ROOT (S (NP (NNP Water)) (VP (MD can) (VP (VB be) (VP (VBN boiled) (S (VP (TO to) (VP (VB kill) (NP (NP (NN giardia)) (CC and) (NP (RBS most) (JJ other) (NNS pathogens))))))))) (. .)))