( ( ( ( ( The macronutrients ) , ) ( so ( called ( because ( plants ( ( require them ) ( in ( large amounts ) ) ) ) ) ) ) ) , ) ( ( include ( ( hydrogen , ) ( carbon ( , ( oxygen ( , ( nitrogen ( , ( phosphorus ( , ( potassium ( , ( calcium ( , ( magnesium ( , ( and sulfur ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS macronutrients)) (, ,) (VP (ADVP (RB so)) (VBN called) (SBAR (IN because) (S (NP (NNS plants)) (VP (VBP require) (NP (PRP them)) (PP (IN in) (NP (JJ large) (NNS amounts))))))) (, ,)) (VP (VBP include) (NP (NP (NN hydrogen)) (, ,) (NP (NN carbon) (, ,) (NN oxygen) (, ,) (NN nitrogen) (, ,) (NN phosphorus) (, ,) (NN potassium) (, ,) (NN calcium) (, ,) (NN magnesium) (, ,) (CC and) (NN sulfur)))) (. .)))
The macronutrients , so called because plants require them in large amounts, include hydrogen, carbon, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.
(ROOT (S (NP (NNP Potassium) (, ,) (NNP calcium) (, ,) (CC and) (NNP magnesium)) (VP (VBP are) (VP (VBN considered) (NP (NNS macronutrients)))) (. .)))