Discussion
What is inheritance in a frame or network representation?
Answer: B
Stating that birds fly once, and that a canary is a bird, saves stating it for every species, and the inference is a matter of following the is a links upward. It is the principal economy such representations offer. Run time transfer, system migration and caching are different notions. Storing a property at the most general level at which it holds is an economy of expression whose price is the difficulty of handling exceptions.
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