what is the main common interests of the abu'l-barakāt al-baghdādī and sa'id of mogadishu ?
SELECT DISTINCT var_uri where brack_open dbr_Abu'l-Barakāt_al-Baghdādī dbp_mainInterests var_uri sep_dot dbr_Sa'id_of_Mogadishu dbp_mainInterests var_uri brack_close