
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
Determine how many of the first 15 cumulative sums of Fibonacci numbers are also prime. The Fibonacci sequence starts with 1, 1, 2, 3, 5, etc.

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