Translation Is No Magic

rule: [fname = F] AND [lname = L] Ž

A = LnFnToName(L,F); emit: [author = A]

external function

• mapping: [fname = tom] AND [lname = hanks] Ž

[author = “hanks, tom”]

rule: [lname = L] Ž emit: [author has L]

input: query pattern

output: translation

• mapping: [lname = hanks] Ž [author has hanks]

Mapping rules to provide domain-specific expertise:

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