
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
There are four workers, $P$, $Q$, $R$, and $S$ and four tasks, $A$, $B$, $C$, and $D$. However, $P$ is not suitable for task $B$, $Q$ is not suitable for tasks $B$ and $C$, and $R$ cannot do tasks $C$ and $D$.

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