what is the main common interests of the abd al-ghani al-maqdisi and syed safdar hussain najafi ?
SELECT DISTINCT var_uri where brack_open dbr_Abd_al-Ghani_al-Maqdisi dbp_mainInterests var_uri sep_dot dbr_Syed_Safdar_Hussain_Najafi dbp_mainInterests var_uri brack_close