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Sr. Martha Oko uses sign language to teach pupils at St. Vincent's Centre for Inclusive Education, run by the Daughters of Charity in Uyo, state capital of Akwa Ibom in Southern Nigeria. (Kelechukwu Iruoma)
Sr. Martha Oko uses sign language to teach pupils at St. Vincent's Centre for Inclusive Education, run by the Daughters of Charity in Uyo, state capital of Akwa Ibom in Southern Nigeria. (Kelechukwu Iruoma)