
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
It is known that a certain railway bridge is 1000 meters long. Now, a train passes over the bridge, and Xiao Liang and Xiao Fang observed it from different angles: Xiao Liang: It took 1 minute for the train to completely pass over the bridge from the moment it started to cross. Xiao Fang: The entire train was completely on the bridge for 40 seconds. Based on the information above, please calculate the length of the train and the speed of the train.

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