Unfortunately, the mistake is compounded and perpetuated by dragging in expressions like man in the street, the average working man , and others, and, as a result, the entire argument degenerates.
( Unfortunately ( , ( ( ( ( ( ( ( the mistake ) ( is ( ( ( compounded and ) perpetuated ) ( by ( ( dragging ( in ( expressions ( like man ) ) ) ) ( in ( ( ( ( ( ( the street ) , ) ( the ( average ( working man ) ) ) ) , ) and ) others ) ) ) ) ) ) ) , ) and ) ( , ( ( as ( a result ) ) , ) ) ) ( ( the ( entire argument ) ) degenerates ) ) . ) ) )
(ROOT (S (ADVP (RB Unfortunately)) (, ,) (S (NP (DT the) (NN mistake)) (VP (VBZ is) (VP (VBN compounded) (CC and) (VBN perpetuated) (PP (IN by) (S (VP (VBG dragging) (PP (IN in) (NP (NP (NNS expressions)) (PP (IN like) (NP (NN man))))) (PP (IN in) (NP (NP (DT the) (NN street)) (, ,) (NP (DT the) (JJ average) (JJ working) (NN man)) (, ,) (CC and) (NP (NNS others)))))))))) (, ,) (CC and) (PRN (, ,) (PP (IN as) (NP (DT a) (NN result))) (, ,)) (S (NP (DT the) (JJ entire) (NN argument)) (VP (VBZ degenerates))) (. .)))
Blue collar workers are often looked down upon in American society.
( ( Blue ( collar workers ) ) ( ( ( are often ) ( ( looked down ) ( upon ( in ( American society ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Blue) (NN collar) (NNS workers)) (VP (VBP are) (ADVP (RB often)) (VP (VBN looked) (PRT (RP down)) (PP (RP upon) (PP (IN in) (NP (JJ American) (NN society)))))) (. .)))