( ( These items ) ( ( have ( ( the ( same density ) ) ( as ( water ( so ( will ( tend ( to ( neither ( ( sink or ) float ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS items)) (VP (VBP have) (NP (NP (DT the) (JJ same) (NN density)) (SBAR (IN as) (S (NP (NN water)) (ADVP (RB so)) (VP (MD will) (VP (VB tend) (S (VP (TO to) (VP (ADVP (RB neither)) (VB sink) (CC or) (VB float)))))))))) (. .)))
These items have the same density as water so will tend to neither sink or float.
(ROOT (S (NP (NNP Density)) (VP (VBZ allows) (SBAR (S (NP (NN cut)) (VP (VBZ logs) (S (VP (TO to) (VP (VB float) (PP (IN on) (NP (NN water)))))))))) (. .)))