( ( The ( considered ( interaction types ) ) ) ( ( include ( ( ( ( ( ( ( ( ( hydrogen bonding ) , ) hydrophobicity ) , ) electrostatics ) , ) ( metal ions ) ) , ) ( covalent ( bonding patterns ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ considered) (NN interaction) (NNS types)) (VP (VBP include) (NP (NP (NN hydrogen) (NN bonding)) (, ,) (NP (NN hydrophobicity)) (, ,) (NP (NNS electrostatics)) (, ,) (NP (NN metal) (NNS ions)) (, ,) (NP (JJ covalent) (NN bonding) (NNS patterns)))) (. .)))
The considered interaction types include hydrogen bonding, hydrophobicity, electrostatics, metal ions, covalent bonding patterns.
(ROOT (S (NP (JJ Metallic) (NNS bonds)) (VP (VBP hold) (PRT (RP together)) (NP (NP (JJ positive) (NN metal) (NNS ions)) (CC and) (NP (PRP$ their) (JJ valence) (NNS electrons)))) (. .)))