sentence: Pleasure of working at concerts is when I look in front of the stage and see different classes of people of different ages , from the young to the elderly , who have forgotten all their worries and are enjoying the same concert as if not and be separate .
modified: Pleasure to work at concerts is when I look in front of the stage and see different classes of people with different ages starting from the young and the elderly who forget all your worries and enjoy the same concert as if not and be separate .
transformation: PART, VERB:FORM, PREP, OTHER, OTHER, PUNCT, VERB:TENSE, DET, VERB:TENSE