( ( ( ( ( ( ( Alpha particle ) , ) ( beta particle ) ) , ) and ) ( gamma ( ray ( radioactive emissions ) ) ) ) ( ( are ( industrially useful ) ) . ) )
(ROOT (S (NP (NP (NNP Alpha) (NNP particle)) (, ,) (NP (JJ beta) (NN particle)) (, ,) (CC and) (NP (NN gamma) (NN ray) (NN radioactive) (NNS emissions))) (VP (VBP are) (ADJP (RB industrially) (JJ useful))) (. .)))
Alpha particle, beta particle, and gamma ray radioactive emissions are industrially useful.
(ROOT (S (PP (IN Of) (NP (NP (DT the) (CD three) (JJ basic) (NNS types)) (PP (IN of) (NP (JJ radioactive) (NNS emissions))))) (, ,) (NP (DT the) (NN gamma) (NN particle)) (VP (VBZ is) (NP (DT the) (JJS most) (NN penetrating))) (. .)))