
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
Xiao Zhao, Xiao Qian, Xiao Sun, and Xiao Li plan to visit 4 different tourist spots, with each person visiting only one spot. Let event A be "All 4 people visit different spots," and event B be "Xiao Zhao visits a spot alone." Find P(A|B), the probability of event A given event B.

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