
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
During the National Day holiday, Huanhuan and Lele agreed to play at the East Lake Scenic Area. The sightseeing vehicle in the scenic area has 10 seats. When they arrived at the entrance of the scenic area, they found a sightseeing vehicle already waiting. They noticed that there were no adjacent (adjacent means front, back, left, right; diagonal does not count) seats available on the vehicle. What is the minimum number of passengers already on the vehicle?

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