Question: Write a context-free grammar generating the set of all strings corresponding to lists of pizza orders. A pizza order has a size (s, m, or

Write a context-free grammar generating the set of all strings corresponding to lists of pizza orders. A pizza order has a size (s, m, or l) followed by a crust (t or h) followed by up to 5 optional toppings chosen from a, m, o, p, or s. Double toppings are not allowed. m will not precede a, o will not precede m or a, etc. Commas are used to separate items in a list. A list may be empty.

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