What was the methodology used by eliza the program devised by joseph weizenbaum to come up with responses to questions ?

ELIZA is a dialect preparing PC program made by Joseph Weizenbaum at the MIT Artificial Intelligence Laboratory. ELIZA utilized an example coordinating and substitution philosophy.  

Example coordinating is the demonstration of checking a given grouping for the nearness of some example.  

Substitution system is the utilization of contents to answer client inputs and participate in talk.  

Consequently, utilizing design coordinating and substitution procedure it was given the hallucination of comprehension with respect to the program.