The five clauses illustrate three principles:
1. Appurtenance: lasting components of the principal property can accompany it in a sale.
2. Separately owned produce: harvestable crops and existing fruit may remain distinct from the thing to which they are attached.
3. Delivery of the sold property: performance includes clearing and delivering what was sold, not merely naming it in the contract.
These explain how to resolve the house, orchard, field and fruit examples systematically.