
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 regular pentagonal prism, the line connecting two vertices that are not on the same side face nor on the same base is called its diagonal. Calculate the total number of diagonals.

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