As with other types of internal controls, this is a cycle of activity, not an exercise with a defined beginning and end.
( ( As ( with ( ( other types ) ( of ( internal controls ) ) ) ) ) ( , ( this ( ( is ( ( ( ( a cycle ) ( of activity ) ) , ) ( ( not ( an exercise ) ) ( with ( a ( defined ( ( beginning and ) end ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN As) (PP (IN with) (NP (NP (JJ other) (NNS types)) (PP (IN of) (NP (JJ internal) (NNS controls)))))) (, ,) (NP (DT this)) (VP (VBZ is) (NP (NP (DT a) (NN cycle)) (PP (IN of) (NP (NN activity))) (, ,) (ADVP (RB not) (NP (DT an) (NN exercise)) (PP (IN with) (NP (DT a) (JJ defined) (NN beginning) (CC and) (NN end)))))) (. .)))
There is no clear beginning and end, it's a continuous cycle.
( ( There ( is ( ( ( no ( clear beginning ) ) and ) end ) ) ) ( , ( it ( ( 's ( a ( continuous cycle ) ) ) . ) ) ) )
(ROOT (S (S (NP (EX There)) (VP (VBZ is) (NP (NP (DT no) (JJ clear) (NN beginning)) (CC and) (NP (NN end))))) (, ,) (NP (PRP it)) (VP (VBZ 's) (NP (DT a) (JJ continuous) (NN cycle))) (. .)))