
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
Suppose \( O A B C \) is a regular tetrahedron with side length 1. Let \( E \) and \( F \) be the midpoints of \( A B \) and \( O C \) respectively. What is the distance between the skew lines \( \mathrm{OE} \) and \( \mathrm{BF} \)?

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