Zumbi Soweto of Phila. (left) keeps the beat, Angela Sadia Watson of Phila. dances the Kassa dance as children Keyonna Williams,9, of Savannah Georgia (striped shirt) and Khemit Umoren, 6, of Phila (far right) follow along during the Kwanza Celebration Ujima (Collective Work and Responsibility) at the African American Museum in Phila. on December 28, 2011. ( Elizabeth Robertson / Staff Photographer ) EDITORS NOTE: PKWANZAA29 126414 Kwanza Celebration Ujima (Collective Work and Responsibility) at the African American Museum in PhilaRead moreINQ ROBERTSONby Cheryl Shugars Published Dec. 29, 2011, 3:05 a.m. ETNone