
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
Four balls, each labeled with one of the Chinese characters "孔", "孟", "之", "乡", are placed in an opaque bag. The balls are identical in all aspects except for the characters. Before each draw, the balls are mixed thoroughly, and one ball is randomly drawn without replacement. Calculate the probability that the characters on the two drawn balls form "孔孟".

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