What if I define keywords as combination of two list of strings?
['B', 'G96', 'TPSS', 'RevTPSS', 'BRx', PBE', 'PBEh', 'wPBEh']
['VWN', 'P86', 'PW91', 'TPSS']
and a keyword is a combination of a word in List1 + a word in List2, e.g. 'RevTPSSTPSS' is a keyword, but a single 'TPSS' is not. How do I write the Gaussian syntax file?