
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
In triangle \(ABC\), \(BK\) is the median, \(BE\) is the angle bisector, and \(AD\) is the altitude. Find the length of side \(AC\) if it is known that lines \(BK\) and \(BE\) divide segment \(AD\) into three equal parts and the length of \(AB\) is 4.

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