
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 sum of $n$ terms of a geometric sequence $\left\{b_{n}\right\}$ is 6 times less than the sum of the reciprocals of these terms. Find the product $b_{1} b_{n}$.

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