
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
Given line $l_{1}: x+2y+1=0$, and line $l_{2}: Ax+By+2=0$ ($A,B\in\{1,2,3,4\}$), find the probability that line $l_{1}$ is not parallel to line $l_{2}$.

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