Types and structures of capacitors

[Googl]

I have a question that is asking me to draw a diagram and explain the structure of different types of capacitors.

I am actually not sure what they're referring to. Do you think they might be referring to types of capacitors like: Ceramic capacitor, mica capacitor, Electrolytic capacitor. The confusing part is where they ask to draw because the only diagrams that I can see drawing are

Or
[PLAIN]http://www.thrivetechno.com/micacap.jpg
Or
http://www.oreind.com/images/highlights/capacitor.jpg

Thanks for your help.

 

[cragar]

I think their referring to like parallel plate capacitors or cylindrical capacitors or where they take metal the plastic sheets then metal and then roll them up and put them in a can . Or maybe I am wrong.