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find a method to generalize the input you parse. What is the general structure you're parsing? what is easy (the number of items, location)? what is difficult (dimensions)?

EDIT: Norm's reply is...

You cannot decide what to use until you have finalized the syntax. You haven't answered Norm's question.

Does the position of these verbs and nouns change in the sentence?

Post your code and ask specific questions. Noboidy will provide ready made code.