People- to co-venture with the business, to hire for their field of expertise in your chosen business, to run the operations, to consult regarding construction or compliances with legal bodies, etc.
Place of Business - to where you should start, maintain the business operations and administration and have a concrete location to design and sell your product, could it be leased or you own the land itself
Property - which includes immovable property like the land and building or warehouse, and movable property like the equipment you need to us for the manufacturing of your product, also the vehicles you need for your service and delivery of your product, your network system, your office equipment.
Product - of course you cant do without this, would it be a service or an object, it is still a product because this will be what you will sell or trade to your customers, may it be an end-user or a middleman (distribution of wholesale or retailer.