Simply put, the less certain retailers are of the demand for their product, the more safety stock they must hold to meet consumer needs.
( ( Simply put ) ( , ( ( the ( ( less certain ) retailers ) ) ( ( ( ( are ( of ( ( the demand ) ( for ( their product ) ) ) ) ) , ) ( ( the ( more ( safety stock ) ) ) ( they ( must ( hold ( to ( meet ( consumer needs ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (ADVP (RB Simply)) (VBN put))) (, ,) (NP (DT the) (ADJP (RBR less) (JJ certain)) (NNS retailers)) (VP (VBP are) (PP (IN of) (NP (NP (DT the) (NN demand)) (PP (IN for) (NP (PRP$ their) (NN product))))) (, ,) (NP (NP (DT the) (JJR more) (NN safety) (NN stock)) (SBAR (S (NP (PRP they)) (VP (MD must) (VP (VB hold) (S (VP (TO to) (VP (VB meet) (NP (NN consumer) (NNS needs))))))))))) (. .)))
If a retailer is unsure of the demand for the product, they have to decrease the safety stock they are holding.
( ( If ( ( a retailer ) ( is ( unsure ( of ( ( the demand ) ( for ( the product ) ) ) ) ) ) ) ) ( , ( they ( ( have ( to ( decrease ( ( the ( safety stock ) ) ( they ( are holding ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT a) (NN retailer)) (VP (VBZ is) (ADJP (JJ unsure) (PP (IN of) (NP (NP (DT the) (NN demand)) (PP (IN for) (NP (DT the) (NN product))))))))) (, ,) (NP (PRP they)) (VP (VBP have) (S (VP (TO to) (VP (VB decrease) (NP (NP (DT the) (NN safety) (NN stock)) (SBAR (S (NP (PRP they)) (VP (VBP are) (VP (VBG holding)))))))))) (. .)))