
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
Three young brother-sister pairs from different families need to take a trip in a van. There are six children in total who will occupy the second and third rows, each of which has three seats. Siblings may not sit right next to each other in the same row, and no child may sit directly in front of his or her sibling. Determine the number of seating arrangements possible for this trip.

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