
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
Find the weight of the fish, knowing that its tail weighs 4 kg, its head weighs as much as the tail plus half of the body, and the body weighs as much as the head and the tail together.

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