India, famously, produces a flood of generic drugs that can vary in quality.

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The images vary in quality and Mr Steinberg is aware of the risk that ratings may reflect the skill of the photographer not the landscape.

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The entries, as you might expect, vary in quality.

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But necessarily, the data vary in quality, she said.

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Preschool activists explain away such results by claiming that different programs vary enormously in quality.

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Similarescan vary wildly in quality.

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They are picked up locally by the freighter and while they vary in shape and quality, they all have to meet tough quality standards and strict European Union regulations.

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In the U.S., curcumin is popping up in a growing number of dietary supplements, but quality can vary.

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Even with high speeds, technology analysts say, quality can vary widely between neighborhoods and cable speeds can bog down in the late afternoon and evening, when all your neighbors are online, too.

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Tonal quality is a subjective measurement, of course, and Stradivarius violins vary in their tones.

ECONOMIST: Violin-making