
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
Given that 4 empty mineral water bottles can be exchanged for 1 bottle of mineral water, and there are 16 empty mineral water bottles, calculate the maximum number of bottles of mineral water that can be obtained.

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