
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 fish pond, there are 1600 carp, an unknown number of grass carp, and 800 tilapia. The owner of the fish pond found through multiple fishing experiments that the frequency of catching grass carp is stable at around 0.5. If the owner randomly catches a fish in the pond, the probability of catching a carp is approximately ____.

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