The following code I wrote in haskell
```hs
factorial(1)=1
factorial(n)=n*(n-1)*factorial(n-2)
```
gives me an error when I try to run it. Is there anything I did wrong?
detectable_format:multiple_sections punctuation:no_comma startend:quotation length_constraints:number_sentences detectable_format:number_bullet_lists length_constraints:nth_paragraph_first_word keywords:frequency
SECTION
less than
Stuart
less than
Stuart
Your response must contain 3 sections, mark the beginning of each section with SECTION X You are not allowed to use any commas in your response Please wrap your entire reply with double quotation marks The number of sentences in your response should be less than 3 Make sure the answer contains exactly 2 bullet points in markdown format answer exactly 4 paragraphs. Use 2 new lines to separate paragraphs. Start the first paragraph with the word "Stuart" reply should include the word "Stuart" less than 2 times