Lift and fitness tracker: what they have in common

1. Step 1. Lift — is used in — Paraglider. Lift.
2. Step 2. Paraglider — is made of — Nylon. The canopy is nylon.
3. Step 3. Nylon — is material for — Airbag. The airbag is nylon.
4. Step 4. Airbag — has part — Accelerometer. The crash sensor is an accelerometer.
5. Step 5. Accelerometer — is part of — Fitness tracker. A pedometer.

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