
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
A math conference is presenting a series with seven different lecturers. If Dr. Brown's lecture depends on Dr. Green's lecture, so that Dr. Brown must be scheduled at some time after Dr. Green, in how many orders can the seven lecturers be scheduled?

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