The guitar is my favorite instrument.  It is fretted and normally has six strings
I love the guitar. I used to play classical guitar, but wasn't very good. Do you know where the guitar originated?
Actually guitars evolved from the gittern, the vihuela, and the Renaissance guitar.
So they've been around a while then. I know there are different types of guitar, but don't really know much about them. Any ideas?
Well my personal favorite is Acoustic guitars.  The transmit sound by vibrating the strings and do not use electronic amps
That's what I used to have. I agree with you - they're my favorite, too. What else do you know about guitars? You obviously know more than me!
The guitar is actually considered a type of chordophone, only it is distringuished by its different construction
Hmm. I didn't know there was much difference. Interesting. What is the construction difference?
The different construction using the nylon or steel strings 
Ah, ok. Makes sense. Any other interesting facts about the guitar that I should know?