Their supplies scarce, their harvest meager, and their spirit broken, they abandoned the fort in 1858.
( ( ( ( ( ( Their supplies ) ( ( scarce , ) ( ( their harvest ) meager ) ) ) , ) and ) ( ( their spirit ) broken ) ) ( , ( they ( ( ( abandoned ( the fort ) ) ( in 1858 ) ) . ) ) ) )
(ROOT (S (S (S (NP (PRP$ Their) (NNS supplies)) (VP (VBZ scarce) (, ,) (S (NP (PRP$ their) (NN harvest)) (ADJP (JJ meager))))) (, ,) (CC and) (S (NP (PRP$ their) (NN spirit)) (VP (VBN broken)))) (, ,) (NP (PRP they)) (VP (VBD abandoned) (NP (DT the) (NN fort)) (PP (IN in) (NP (CD 1858)))) (. .)))
Their supplies remained very low and hard to maintain.
( ( Their supplies ) ( ( remained ( very ( ( ( low and ) hard ) ( to maintain ) ) ) ) . ) )
(ROOT (S (NP (PRP$ Their) (NNS supplies)) (VP (VBD remained) (ADJP (RB very) (JJ low) (CC and) (JJ hard) (S (VP (TO to) (VP (VB maintain)))))) (. .)))