( ( ( ( ( ( 31 ( A weed ) ) ( is ( ( a plant ) ( growing ( where ( it ( ( is not ) wanted ) ) ) ) ) ) ) , ) and ) ( it ( interferes ( with ( ( ( ( ( ( ( ( ( ( crops , ) roadsides ) , ) ( landscape plantings ) ) , ) livestock ) , ) ( irrigation ditches ) ) , ) etc. ) ) ) ) ) . )
(ROOT (S (S (NP (CD 31) (NNP A) (NN weed)) (VP (VBZ is) (NP (NP (DT a) (NN plant)) (VP (VBG growing) (SBAR (WHADVP (WRB where)) (S (NP (PRP it)) (VP (VBZ is) (RB not) (VP (VBN wanted))))))))) (, ,) (CC and) (S (NP (PRP it)) (VP (VBZ interferes) (PP (IN with) (NP (NP (NNS crops)) (, ,) (NP (NNS roadsides)) (, ,) (NP (NN landscape) (NNS plantings)) (, ,) (NP (NN livestock)) (, ,) (NP (NN irrigation) (NNS ditches)) (, ,) (NP (FW etc.)))))) (. .)))
31 A weed is a plant growing where it is not wanted, and it interferes with crops, roadsides, landscape plantings, livestock, irrigation ditches, etc.
(ROOT (S (NP (NP (NNS Plants)) (SBAR (WHNP (WDT that)) (S (VP (VBP grow) (SBAR (WHADVP (WRB where)) (S (NP (PRP you)) (VP (VBP do) (RB n't) (VP (VB want) (NP (PRP them)))))))))) (VP (VBP are) (VP (VBN called) (NP (NNS weeds)))) (. .)))