
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
Point \( C \) is located 12 km downstream from point \( B \). A fisherman set out in a rowboat from point \( A \), which is upstream from point \( B \), and reached \( C \) in 4 hours. For the return trip, he took 6 hours. On another occasion, the fisherman used a motorized boat, tripling his relative speed in the water, and traveled from \( A \) to \( B \) in 45 minutes. Determine the speed of the current, assuming it is constant.

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