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: Ringtone Club: Get the UK singles chart on your mobile each week and choose any top quality ringtone! This message is free of charge.
Example Output: spam

Example Input: O. Well uv causes mutations. Sunscreen is like essential thesedays
Example Output: ham

Example Input: No calls..messages..missed calls
Example Output:
ham