
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
There are two docks, A and B, on a river. Dock A is upstream and dock B is downstream. Two people, person 1 and person 2, start rowing from A and B respectively at the same time, rowing towards each other, and meet after 4 hours. If person 1 and person 2 start rowing from A and B respectively at the same time, rowing in the same direction, person 2 catches up with person 1 after 16 hours. Given that person 1's rowing speed in still water is 6 km per hour, determine the speed of person 2's rowing in still water in km per hour.

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