Essentially, random fluctuation in demand cannot be explained by trends, seasonality, cyclicality, or other factors like advertising and new product introduction.
( Essentially ( , ( ( ( random fluctuation ) ( in demand ) ) ( ( ( can not ) ( be ( ( explained ( by ( ( ( ( ( ( ( trends , ) seasonality ) , ) cyclicality ) , ) or ) ( other factors ) ) ) ) ( like ( advertising ( and ( new ( product introduction ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Essentially)) (, ,) (NP (NP (JJ random) (NN fluctuation)) (PP (IN in) (NP (NN demand)))) (VP (MD can) (RB not) (VP (VB be) (VP (VBN explained) (PP (IN by) (NP (NP (NNS trends)) (, ,) (NP (NN seasonality)) (, ,) (NP (NN cyclicality)) (, ,) (CC or) (NP (JJ other) (NNS factors)))) (PP (IN like) (NP (NN advertising) (CC and) (JJ new) (NN product) (NN introduction)))))) (. .)))
Retailers would like to be able to explain every fluctuation in demand.
( Retailers ( ( would ( like ( to ( be ( able ( to ( explain ( ( every fluctuation ) ( in demand ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Retailers)) (VP (MD would) (VP (VB like) (S (VP (TO to) (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VB explain) (NP (NP (DT every) (NN fluctuation)) (PP (IN in) (NP (NN demand))))))))))))) (. .)))