( ( ( ( ( Stellar nucleosynthesis ) , ) ( an ( ongoing process ) ) ) , ) ( ( ( produces ( ( all elements ) ( from carbon ) ) ) ( through ( iron ( in ( ( ( ( ( atomic number ) , ) but ) little ) ( lithium ( , ( beryllium ( , ( or boron ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Stellar) (NNS nucleosynthesis)) (, ,) (NP (DT an) (JJ ongoing) (NN process)) (, ,)) (VP (VBZ produces) (NP (NP (DT all) (NNS elements)) (PP (IN from) (NP (NN carbon)))) (PP (IN through) (NP (NP (NN iron)) (PP (IN in) (NP (NP (JJ atomic) (NN number)) (, ,) (CC but) (RB little) (NP (NN lithium) (, ,) (NN beryllium) (, ,) (CC or) (NN boron))))))) (. .)))
Stellar nucleosynthesis, an ongoing process, produces all elements from carbon through iron in atomic number, but little lithium, beryllium, or boron.
(ROOT (S (NP (NP (DT The) (JJ low) (JJ atomic) (NN number)) (PP (IN of) (NP (NN beryllium)))) (VP (VBZ allows) (S (NP (PRP it)) (VP (TO to) (VP (VB absorb) (NP (NNPS x-rays)))))) (. .)))