Assertion: soybean's use | /r/HasSubevent | better traction
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Source sentences:
text: Thanks in part to checkoff-funded research, Goodyear discovered using soybean oil in tires resulted in better traction in wet and winter conditions and launched a line of soy-based tires offered in a wide range of sizes, covering 77 percent of cars, minivans and SUVs on the road today.