 He worked as a night guard at the House of Art (Nyumba ya Sanaa), a  centre for the development of African art and craftsmanship in Dar es Salaam.
<meaning-changed>  He worked as a night guard at the House of Art (Nyumba ya Sanaa), a  centre for the development of African art and craftsmanship in Dar es Salaam.
 He worked as a night guard at the House of Art (Nyumba ya Sanaa), a cultural centre for the development of African art and craftsmanship in Dar es Salaam.