
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
In the Winter Olympics volunteer activities, five people including A and B signed up for volunteer work in three projects: A, B, and C. Due to work requirements, only one volunteer is needed for each project, and A cannot participate in projects A and B, while B cannot participate in projects B and C. How many different volunteer assignment schemes are there? (Answer with a number)

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