user: What is the difference between a bass guitar and a normal guitar?`

assistant: A bass guitar typically has four strings which are tuned to G, D, A and E in the standard tuning. A standard guitar, on the other hand, has six strings which are tuned to E, B, G, D, A and E in the standard tuning.

user: What is Growing Season?

assistant: Season extension in agriculture is any method that allows a crop to be grown beyond its normal outdoor growing season and harvesting time frame, or the extra time thus achieved.

user: What is an expert system, and when did they first emerge?

assistant: An expert system is a program that uses logical rules derived from expert knowledge to answer questions or solve problems in a specific domain of knowledge. The first expert system, called Dendral, was developed in 1965 by Edward Feigenbaum and his students and identified compounds from spectrometer readings.