this is the whole article, the #BASIC list is in this TZX file (it is called 'infer'):
https://spectrumcomputing.co.uk/entry/13625/ZX-Spectrum/MicroHobby_Semanal_041-044
To put it in a nutshell, It's about questions/answers, and the computer 'learns' about the info you give it in your answers.
Maybe a crap AI attempt, but awesome by that year (1985)
#zxspectrum #AI