
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
Seven natives from several tribes are sitting around a campfire in a circle. Each tells their neighbor to the left: "There are no members of my tribe among the other five." It is known that natives lie to strangers and tell the truth to their own people. How many tribes are represented at the campfire?

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