
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
An engineering team installed 1200 street lights in the first month and 1300 street lights in the second month. At this point, 500 street lights remain to be installed. What is the ratio of the total number of installed street lights to the number of street lights not yet installed?

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