In many core neighborhoods of all income classes, voices are being raised about the necessity of neighborhood preservation, about community service, and about offering broad-based opportunities and experiences for children growing up in  Sin Cite  
Neighborhood preservation is important to all income classes.
No voices are being raised about community service.
Two humans are in the air.
The man is using a bulldozer.
They analyzed the trends of personal and gross saving.
The EPA is not collecting information.
You don't want to help.
The lady is sitting by herself.