Collect a series of examples of the use of genitive for different words / structures etc. in Afrikaans ... perhaps from Wikipedia ... and try translating them to Dutch with the translator to test if the genitive handling works. You will need to first write a transfer rule (you can look for example at the existing one for proper nouns).

You should add the examples to the pending tests page on the Wiki when you are finished.

Any questions, ask a mentor on IRC.