[What are the rules?].
D017954:Africa South of the Sahara; D000822:Animal Husbandry / Q000191:economics / Q000639:trends; D000818:Animals; D004520:Education, Veterinary / Q000639:trends; D005260:Female; D005544:Forecasting; D014644:Genetic Variation; D006801:Humans; D008297:Male; D009426:Netherlands; D014330:Tropical Medicine / Q000639:trends; D014730:Veterinary Medicine / Q000639:trends
Wat zijn de spelregels?