With its roots in Taylorism, each PBS task is given a target time or  SAM (Standard Allocated Minutes).
( ( With ( ( its roots ) ( in Taylorism ) ) ) ( , ( ( each ( PBS task ) ) ( ( is ( given ( ( ( a ( target time ) ) or ) ( ( ( SAM -LRB- ) ( Standard ( Allocated Minutes ) ) ) -RRB- ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN With) (NP (NP (PRP$ its) (NNS roots)) (PP (IN in) (NP (NNP Taylorism))))) (, ,) (NP (DT each) (NNP PBS) (NN task)) (VP (VBZ is) (VP (VBN given) (NP (NP (DT a) (NN target) (NN time)) (CC or) (NP (NP (NNP SAM)) (-LRB- -LRB-) (NP (NNP Standard) (NNP Allocated) (NNPS Minutes)) (-RRB- -RRB-))))) (. .)))
PBS tasks always take a random number of minutes.
( ( PBS tasks ) ( always ( ( take ( ( a ( random number ) ) ( of minutes ) ) ) . ) ) )
(ROOT (S (NP (NNP PBS) (NNS tasks)) (ADVP (RB always)) (VP (VBP take) (NP (NP (DT a) (JJ random) (NN number)) (PP (IN of) (NP (NNS minutes))))) (. .)))