( ( ( The number ) ( of ( participants ( -LRB- ( ( ( ( ( ( youths , ) adults ) , ) and ) volunteers ) -RRB- ) ) ) ) ) ( ( is ( ( determined ( in part ) ) ( by ( ( ( ( ( ( the amount ) ( of ( lodging ( and ( food ( preparation facilities ) ) ) ) ) ) ( -LRB- ( ( these ( ( ( ( ( are not ) required ) , ) but ) ( are desired ) ) ) -RRB- ) ) ) , ) and ) ( ( the number ) ( of ( safe ( hunting areas ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN number)) (PP (IN of) (NP (NP (NNS participants)) (PRN (-LRB- -LRB-) (NP (NP (NNS youths)) (, ,) (NP (NNS adults)) (, ,) (CC and) (NP (NNS volunteers))) (-RRB- -RRB-))))) (VP (VBZ is) (VP (VBN determined) (PP (IN in) (NP (NN part))) (PP (IN by) (NP (NP (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (VBG lodging) (CC and) (NN food) (NN preparation) (NNS facilities)))) (PRN (-LRB- -LRB-) (S (NP (DT these)) (VP (VP (VBP are) (RB not) (VP (VBN required))) (, ,) (CC but) (VP (VBP are) (ADJP (JJ desired))))) (-RRB- -RRB-))) (, ,) (CC and) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (JJ safe) (NN hunting) (NNS areas)))))))) (. .)))
The number of participants (youths, adults, and volunteers) is determined in part by the amount of lodging and food preparation facilities (these are not required, but are desired), and the number of safe hunting areas.
(ROOT (S (NP (NP (DT The) (NN amount)) (PP (IN of) (NP (NP (NN food)) (ADJP (JJ available) (PP (IN in) (NP (DT the) (NN area))))))) (ADVP (RB best)) (VP (VBZ determines) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS wolves)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB live) (PP (IN in) (NP (DT an) (NN area))))))))))) (. .)))