There are certain categories of control activities that are common to all agencies.
( There ( ( are ( ( ( certain categories ) ( of ( control activities ) ) ) ( that ( are ( common ( to ( all agencies ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (JJ certain) (NNS categories)) (PP (IN of) (NP (NN control) (NNS activities))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJ common) (PP (TO to) (NP (DT all) (NNS agencies))))))))) (. .)))
Nothing about agencies are familiar, they are all unique.
( ( ( Nothing ( about agencies ) ) ( are familiar ) ) ( , ( they ( ( ( are all ) unique ) . ) ) ) )
(ROOT (S (S (NP (NP (NN Nothing)) (PP (IN about) (NP (NNS agencies)))) (VP (VBP are) (ADJP (JJ familiar)))) (, ,) (NP (PRP they)) (VP (VBP are) (RB all) (ADJP (JJ unique))) (. .)))