Please write an original code in Python, to satisfy the above condition.

Problem 3: Tokenization The following cell defines a regular expression for a simple tokenizer. As written, it divides tokens up at spaces with two exceptions: punctuation marks are tokens by themselves and the contraction nt is treated as a separate token. Modify this expression so that it meets the following additional requirements: - the punctuation marks ",", and ... (left double apostrophe, right double apostrophe, and ellipsis) should be single tokens - like n 't, the contractions 've, 'Il, 're, and 's should be seperate tokens - numbers should be separate tokens, where: - a number may start with $ or end with % - a number may start with or contain a comma or decimal point but may not end with one (technically, number tokens shouldn't start with a comma but it's okay if your regular expression allows it) Since we're using re. findall to separate tokens, be sure to only use non-capturing groups (?: ). TOK_RE =r(?x) \w+(?=nt)(?