
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
If one third of Mars' surface is not covered by ice, and only two thirds of that exposed area is suitable for human colonies due to rocky terrain and atmospheric conditions, what fraction of Mars' surface is suitable for human colonies?

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