name the river whose mouth mountain is saint john river and mouth place is saint john river ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_mouthMountain dbr_Saint_John_River_ attr_open Bay_of_Fundy attr_close sep_dot var_uri dbo_mouthPlace dbr_Saint_John_River_ attr_open Bay_of_Fundy attr_close sep_dot var_uri a dbo_River brack_close