Though doing that search did show another problem with this card of chart of this data.
I first did GM vs. Toyota. Then it occurred to me that there are a lot of uses of GM that isn't about the car company. So I changed it to Ford before realizing that suffered the same issue even more.
I first went there looking to make a chart comparing the synonyms for negro over time. But of course you can't because "black" blows out the chart due to its many alternate meanings.
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