
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
Select 4 students from 5 female students and 4 male students to participate in four different speeches, according to the following requirements, how many different methods of selection are there?  
(1) 2 male students and 2 female students;  
(2) At least 1 male student and 1 female student;  
(3) Under the premise of (2), male student A and female student B cannot be selected at the same time.

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