( ( The ( weak interaction ) ) ( ( ( finds ( practical application ) ) ( in ( ( ( ( the ( radioactive elements ) ) ( used ( in ( ( medicine and ) technology ) ) ) ) , ) ( which ( ( are ( ( ( ( in ( general beta-radioactive ) ) , ) and ) ( in ( ( the beta-decay ) ( of ( a ( carbon isotope ) ) ) ) ) ) ) ( into ( ( nitrogen , ) ( which ( is ( ( the basis ) ( for ( ( the ( carbon-14 method ) ) ( for ( dating ( of ( organic ( archaeological remains ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ weak) (NN interaction)) (VP (VBZ finds) (NP (JJ practical) (NN application)) (PP (IN in) (NP (NP (DT the) (JJ radioactive) (NNS elements)) (VP (VBN used) (PP (IN in) (NP (NN medicine) (CC and) (NN technology)))) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (PP (PP (IN in) (NP (JJ general) (NN beta-radioactive))) (, ,) (CC and) (PP (IN in) (NP (NP (DT the) (NN beta-decay)) (PP (IN of) (NP (DT a) (NN carbon) (NN isotope)))))) (PP (IN into) (NP (NP (NN nitrogen)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (NP (DT the) (NN basis)) (PP (IN for) (NP (NP (DT the) (JJ carbon-14) (NN method)) (PP (IN for) (S (VP (VBG dating) (PP (IN of) (NP (JJ organic) (JJ archaeological) (NNS remains)))))))))))))))))))) (. .)))
The weak interaction finds practical application in the radioactive elements used in medicine and technology, which are in general beta-radioactive, and in the beta-decay of a carbon isotope into nitrogen, which is the basis for the carbon-14 method for dating of organic archaeological remains.
(ROOT (S (NP (NP (NNP Carbon) (CD 14) (NN isotope)) (PP (IN of) (NP (NN carbon)))) (VP (VBZ is) (ADVP (RB typically)) (VP (VBN used) (PP (TO to) (NP (NN date) (JJ ancient) (NNS items))))) (. .)))