
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
For sets $M$ and $N$, define $M-N=\{x|x \in M, xc \lt d$ and $x \notin N\}$, $M\oplus N=(M-N) \cup (N-M)$. Given $A=\{x|x≥-\frac{9}{4},x \in R\}$ and $B=\{x|x \lt 0,x \in R\}$, find $A\oplus B$.

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