Metal is related to Matter. Matter is related to Science. Science is related to Future. Future is a different concept from Present. 
Person does not want (to) Drink. African is a type of Person. 
Metal <--RelatedTo--> Matter <--RelatedTo--> Science <--RelatedTo--> Future <--DistinctFrom--> Present 
Drink <--NotDesires-- Person <--IsA-- African 