
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
Given that freshly mined iron ore mainly contains iron and other impurities, the smelting process is essentially about removing these impurities. Now, there is a 1000-kilogram piece of iron ore containing $5.95\%$ impurities. After smelting, it becomes a piece of iron with $99\%$ iron content. How many kilograms of impurities were removed during the smelting process? (The loss of iron is negligible)

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