
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
In a lake, there is a patch of water lilies. The area of the water lilies doubles every day. If it takes 48 days for the water lilies to cover the entire lake, how many days does it take for them to cover half of the lake?

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