sentence1_binary_parse: ( ( One example ) ( ( is ( when ( ( a ( boil ( water alert ) ) ) occurs ) ) ) . ) )
sentence1_parse: (ROOT (S (NP (CD One) (NN example)) (VP (VBZ is) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (NN boil) (NN water) (NN alert)) (VP (VBZ occurs))))) (. .)))
sentence1: One example is when a boil water alert occurs.
sentence2_parse: (ROOT (S (NP (NP (CD One) (NN example)) (PP (IN of) (NP (NN matter)))) (VP (VBZ is) (NP (NN water))) (. .)))
sentence2: One example of matter is water.