( ( Indicator ( Clarifications ( Earth ( History 2.5.3 ) ) ) ) ( identify ( ( the ( physical properties ) ) ( of ( minerals ( -LRB- ( ( ( ( e.g. , ) ( color ( , ( hardness ( , ( luster ( , ( and streak ) ) ) ) ) ) ) ) . ) -RRB- ) ) ) ) ) ) )
(ROOT (S (NP (NNP Indicator) (NNP Clarifications) (NNP Earth) (NNP History) (CD 2.5.3)) (VP (VBP identify) (NP (NP (DT the) (JJ physical) (NNS properties)) (PP (IN of) (NP (NP (NNS minerals)) (PRN (-LRB- -LRB-) (NP (NP (NNP e.g.)) (, ,) (NP (NN color) (, ,) (NN hardness) (, ,) (NN luster) (, ,) (CC and) (NN streak)) (. .)) (-RRB- -RRB-))))))))
Indicator Clarifications Earth History 2.5.3 identify the physical properties of minerals (e.g., color, hardness, luster, and streak.)
(ROOT (S (SBAR (IN Although) (S (NP (PRP it)) (VP (VBZ is) (NP (DT the) (JJS easiest) (S (VP (TO to) (VP (VB observe)))))))) (, ,) (NP (NN color)) (VP (VBZ is) (RB not) (ADJP (JJ ideal) (PP (IN as) (NP (DT a) (JJ sole) (NN way)))) (S (VP (TO to) (VP (VB identify) (NP (NNS minerals)))))) (. .)))