
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
Select 4 volunteers from 5 to participate in a charity event on Friday, Saturday, and Sunday, with each person attending one day. The requirement is that one person attends on Friday, two people attend on Saturday, and one person attends on Sunday. Determine the total number of different selection methods.

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