This doesn't appear to be following instructions up to this point. If you are using an example from the lesson text for a model, then check the instructions for the intended usage and expected inputs. I don't think a name is the intended input, but a word. Any word. So rather than ask for a name, ask for a word.
The input is going to be a string, which means we would not need to convert using the
str() function. That is not in the instructions, either so should be removed. Just print original.
>>> print (str("original" + "name"))
This shows that variables are never written in quotes, else they become plain string primitives. Strings do not refer to anything. Variables are pointers to a location in memory where a value or object is stored.
original = raw_input("Enter a word: ")
Somewhere in memory is that word, and original points to where it can be retrieved from.