
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
The volume of a bottle of kvass is 1.5 liters. The first person drank half of the bottle, the second drank a third of what was left after the first, the third drank a quarter of what was left after the previous ones, and so on, with the fourteenth person drinking one-fifteenth of what remained. How much kvass is left in the bottle?

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