
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
Alan is 4 years younger than Bob. Bob is 5 years older than Carl. Donna is two years older than Carl. Emily is the sum of Alan's and Donna's age minus Bob's age. If Bob is 20 years old, how old is Emily?

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