
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
Laura's family wants to give her and her 3 siblings (Laura + 1 younger brother + 2 younger sisters) new cellphones for their exceptional school grades. They have a choice of 25 different service providers. Assuming no sibling wants the same provider as another, calculate in how many different ways can the parents choose providers for each child if the younger brother insists on a provider starting with the letter ‘S’, and six providers start with ‘S’.

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