Perform constituency parsing on the provided sentences in accordance with the Penn TreeBank annotation guidelines. Fill in the last mapping.

Ad Notes
->
[ ( NP-HLN ( NN Ad ) ( NNS Notes ) ) ]

The market crumbled
->
[ ( S ( NP-SBJ ( DT The ) ( NN market ) ) ( VP ( VBD crumbled ) ) ) ]

I felt betrayed he later said
->
[ ( S ( S-TPC-1 ( NP-SBJ ( PRP I ) ) ( VP ( VBD felt ) ( ADJP-PRD ( VBN betrayed ) ) ) ) ( NP-SBJ ( PRP he ) ) ( ADVP-TMP ( RB later ) ) ( VP ( VBD said ) ) ) ]

Friday October 13 1989
->
[ ( NP ( NNP Friday ) ( NNP October ) ( CD 13 ) ( CD 1989 ) ) ]

The Arabs had merely oil
->
[ ( S ( NP-SBJ ( DT The ) ( NNPS Arabs ) ) ( VP ( VBD had ) ( NP ( RB merely ) ( NN oil ) ) ) ) ]

Energy
->
[ ( NP-HLN ( NN Energy ) ) ]

Some U.S. entrepreneurs operate on a smaller scale
->
[ ( S ( NP-SBJ ( DT Some ) ( NNP U.S. ) ( NNS entrepreneurs ) ) ( VP ( VBP operate ) ( PP-MNR ( IN on ) ( NP ( DT a ) ( JJR smaller ) ( NN scale ) ) ) ) ) ]

Knowledgeware Inc.
->
[ ( NP-HLN ( NNP Knowledgeware ) ( NNP Inc. ) ) ]

The question is if group conflicts still exist as undeniably they do and if Mr. Mason 's type of ethnic humor is passe then what other means do we have for letting off steam
->