
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
You have a whole pizza in the refrigerator. On your first trip to the refrigerator, you eat one-third of the pizza. On each successive trip, you eat half of the remaining pizza. After four trips to the refrigerator, what fractional part of the pizza have you eaten?

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