
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
The vertices $A$, $B$, and $C$ of an equilateral triangle $\triangle ABC$ with side length $2$ are all on the surface of a sphere centered at $O$. If the surface area of sphere $O$ is $\frac{148\pi}{3}$, then the volume of the tetrahedron $O-ABC$ is \_\_\_\_\_.

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