response: Well an electric guitar uses one or more pickups to convert the vibration of its string into electrical signals.
history: My friend plays the guitar, do you know much about guitars? Not much,  but I know a few things.  For example, I know the guitar is a type of chordophone, traditionally constructed from wood and strung with either gut, nylon or steel string. That's interesting, what exactly is a chordophone? A chordophone is a musical instrument that makes sound by way of a vibrating string stretched between two points. That makes sense, do you know when the guitar was invented? Not exactly, but the modern guitar was preceded by the gittern, the vihuela, the four-course Renaissance and the five-course baroque guitar. Wow it sounds like it has quite the history, what exactly is a gittern? A guittern was a small gut instrument that first appears in literature during 13th century in Western Europe. Fascinating, do you know anything cool about the electric guitar?
knowledge: An electric guitar is a guitar that uses one or more pickups to convert the vibration of its strings into electrical signals.