( ( No limits ) ( ( are ( set ( ( ( on ( the ( unit ( cell size ) ) ) ) or ) ( on ( ( the number ) ( of ( atoms ( in ( the ( unit cell ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT No) (NNS limits)) (VP (VBP are) (VP (VBN set) (PP (PP (IN on) (NP (DT the) (NN unit) (NN cell) (NN size))) (CC or) (PP (IN on) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS atoms)) (PP (IN in) (NP (DT the) (NN unit) (NN cell)))))))))) (. .)))
No limits are set on the unit cell size or on the number of atoms in the unit cell.
(ROOT (S (NP (NP (DT The) (NNS logistics)) (PP (IN of) (S (VP (VBG carrying) (PRT (RP out)) (NP (JJ cellular) (NN metabolism) (NNS sets)))))) (VP (VBZ limits) (PP (IN on) (NP (NP (DT the) (NN size)) (PP (IN of) (NP (DT the) (NN cell)))))) (. .)))