which scientist is known for the rcos and the rcos ?
select distinct var_uri where brack_open var_uri dbo_knownFor dbr_RCOS_ attr_open computer_sciences attr_close sep_dot var_uri rdf_type dbo_Scientist sep_dot var_uri dbo_knownFor dbr_RCOS_ attr_open computer_sciences attr_close sep_dot brack_close