Aided by Sarasota Contemporary Dance, Endedans Contemporary Ballet USA launched its first performances here in March with a new work celebrating National Women's History Month. But founder and choreographer Tania Vergara Perez and her original company, based in Cuba, had a strong presence on the international dance scene long before arriving in Sarasota. Now a teacher with Sarasota Contemporary Dance and the Sarasota Cuban Ballet School, Vergara has rekin- dled her dream with Endedans, which melds contemporary ballet, theater and drama.