
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
The students built 9 campsites for camping, and the roads connecting the campsites are shown in the diagram. Bebe needs to place a flag at each campsite, ensuring that flags at adjacent campsites are of different colors. What is the minimum number of colors Bebe needs? If Bebe starts from any campsite and does not walk the same route twice, can (fill with "can" or "cannot") they complete the task?

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