
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
A factory's emissions are filtered before being released. The pollution level of the emissions before filtering is $P_0$ mg/L. The relationship between the pollution level $P$ mg/L and time $t$ hours during the filtering process is $P = P_0e^{-kt}$. If 10% of the pollutants are eliminated in the first 5 hours, then after 10 hours, $\_\_\_\_\_\_\_\_$% of the pollutants remain.

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