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: Is that seriously how you spell his name?
Example Output: ham

Example Input: Orange customer, you may now claim your FREE CAMERA PHONE upgrade for your loyalty. Call now on 0207 153 9996. Offer ends 14thMarch. T&C's apply. Opt-out availa
Example Output: spam

Example Input: Dear U've been invited to XCHAT. This is our final attempt to contact u! Txt CHAT to 86688
Example Output:
spam