
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
Points $A$, $B$, $C$, and $D$ are located on line segment $\overline{AB}$ such that $AB = 4AD$ and $AB = 5BC$. Additionally, point $E$ is the midpoint of $\overline{CD}$. If a point is selected at random on $\overline{AB}$, what is the probability that it falls between $C$ and $E$?

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