LAND
Oil in the Ground
Fish in the Ocean
A Building Site
A Broadcast Frequency

LABOR
Teaching
Ditch Digging
Computer Programming
Playing Music in the Subway

WEALTH FOR CONSUMPTION
Food on your table
A House You Live in

WEALTH USED IN PRODUCTION
Food in a Restaurant
Your Mom's old House, which you Rent to Tenants
A Truck

CLAIMS ON WEAlTH
A $100 Bill
A Certificate for 100 Shares of Microsoft