
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
Six cards are labeled with the letters A, B, C, D, E, and F. They are to be placed into three different envelopes such that each envelope contains two cards. If the cards labeled A and B must be placed in the same envelope, how many different arrangements are possible?

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