SueZ - You just hit a 'hot button' for me. I don't believe that any sincere question can be considered 'silly.' If you don't know, how are you going to find out unless you ask? What is truly 'silly' is to not ask when you don't know. A major part of learning is asking questions - of all available resources. Go for it! Ask questions! Enjoy learning!
Excelsior! (Onward & upward)
Margaret Ida