
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
Let  $ABC$  be a triangle with  $AB = 13, BC = 14, $ and $ CA = 15$ . Suppose  $PQRS$  is a square such that  $P$  and  $R$  lie on line  $BC, Q$  lies on line  $CA$ , and  $S$  lies on line  $AB$ . Compute the side length of this square.

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