
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Two tour guides are managing a group of seven tourists. The guides must split up, and each tourist needs to choose which guide to follow. However, both guides must be selected by at least one tourist. How many possible groupings of the guides and tourists can be formed under these conditions?

Present the answer in LaTex format: \boxed{Your answer}
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