( ( ( ( ( ( ( The cycle ) ( of ( cubic cells ) ) ) ( can ( be ( made ( ( as long ) ( as ( you like ) ) ) ) ) ) ) , ) but ) ( ( whatever ( ( the number ) ( of ( cubes ( in it ) ) ) ) ) ( , ( ( the ( four ( prismatic cells ) ) ) ( must ( ( have ( base polygons ) ) ( with ( ( a ( matching number ) ) ( of sides ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (DT The) (NN cycle)) (PP (IN of) (NP (JJ cubic) (NNS cells)))) (VP (MD can) (VP (VB be) (VP (VBN made) (ADVP (ADVP (RB as) (RB long)) (SBAR (IN as) (S (NP (PRP you)) (VP (VBP like))))))))) (, ,) (CC but) (S (SBAR (WDT whatever) (FRAG (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS cubes)) (PP (IN in) (NP (PRP it)))))))) (, ,) (NP (DT the) (CD four) (JJ prismatic) (NNS cells)) (VP (MD must) (VP (VB have) (NP (NN base) (NNS polygons)) (PP (IN with) (NP (NP (DT a) (VBG matching) (NN number)) (PP (IN of) (NP (NNS sides)))))))) (. .)))
The cycle of cubic cells can be made as long as you like, but whatever the number of cubes in it, the four prismatic cells must have base polygons with a matching number of sides.
(ROOT (S (NP (NNS Cells)) (VP (VBP have) (NP (CD four) (NNS cycles))) (. .)))