How to Use "idle" with Example Sentences

1. Inflation is stable because there is less idle capacity to restrain prices .
2. Inefficient state farms occupy three-quarters of the best land but leave much of it idle .
3. Only the dying can be really idle .
4. It might seem an idle pastime but academics have come up with a mathematical equation for why people procrastinate .
5. Or is it a coffee shop furnished with tall wooden benches , where even the air is idle ?