A Natural Language Interface

• An interface is the point of contact between the user and the internals of the program.

• A natural language is one that occurs naturally as opposed to an artificial language like Racket or Scheme.

• Need a program that provides a natural language interface between program and user.

• The program will run as a loop.

• User's questions are English sentences represented as lists of symbols.

• The example interaction that follows uses a larger database.