
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 triangle $\triangle ABC$, where $A$, $B$, $C$ represent the three interior angles, and $a$, $b$, $c$ represent the respective sides opposite these angles. It is known that $b^2+c^2-a^2=bc$ and $\sin^2A+\sin^2B=\sin^2C$. Find the measure of angle $B$.

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