( ( Boric acid ) ( ( has ( ( the advantages ) ( of ( being ( ( ( ( very ( low ( in toxicity ) ) ) and ) ( very long-lasting ) ) ( if ( ( applied ( in ( dry voids ) ) ) ( where ( it ( will ( remain undisturbed ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Boric) (NN acid)) (VP (VBZ has) (NP (NP (DT the) (NNS advantages)) (PP (IN of) (S (VP (VBG being) (ADJP (ADJP (ADJP (RB very) (JJ low) (PP (IN in) (NP (NN toxicity)))) (CC and) (ADJP (RB very) (JJ long-lasting))) (SBAR (IN if) (S (VP (VBD applied) (PP (IN in) (NP (JJ dry) (NNS voids))) (SBAR (WHADVP (WRB where)) (S (NP (PRP it)) (VP (MD will) (VP (VB remain) (ADJP (JJ undisturbed))))))))))))))) (. .)))
Boric acid has the advantages of being very low in toxicity and very long-lasting if applied in dry voids where it will remain undisturbed.
(ROOT (S (NP (NP (DT The) (JJ main) (NN advantage)) (PP (IN of) (NP (NN urea)))) (VP (VBZ is) (NP (PRP$ its) (ADJP (RB very) (JJ low)) (NN toxicity))) (. .)))