In this task, you're given text messages in natural language. Your task is to classify those text messages based on their content into two classes: (1) Spam and (2) Ham messages. If the content of the given message is irrelevant to the receiver or is equally relevant to many other potential recipients then it must be labeled as ‘spam’, otherwise, it should be labeled as ‘ham’.

Example Input: 5 Free Top Polyphonic Tones call 087018728737, National Rate. Get a toppoly tune sent every week, just text SUBPOLY to 81618, £3 per pole. UnSub 08718727870.
Example Output: spam

Example Input: Cant think of anyone with * spare room off * top of my head
Example Output: ham

Example Input: Ok... Ur typical reply...
Example Output:
ham