
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
Among the following surveys, identify those that are more suitable for a census.

(1) Investigate the average lifespan of 1000 TVs from the same batch;
(2) Review a manuscript for any scientific inaccuracies;
(3) An environmental agency investigates phenol leakage pollution in the Xin'an River;
(4) A school surveys students' sizes before making school uniforms.

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