what are the software whose operating systems are windows nt 3 . 51 and windows nt 3 . 51 ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_operatingSystem dbr_Windows_NT_3.51 sep_dot var_uri dbo_operatingSystem dbr_Windows_NT_3.51 sep_dot var_uri a dbo_Software brack_close