COBOL and bicycle: what they have in common

1. Step 1. COBOL — uses — Compiler. A compiler.
2. Step 2. Compiler — is a kind of — Software. A program.
3. Step 3. Software — includes — Mobile app. Software.
4. Step 4. Mobile app — is used in — Bike sharing. An app.
5. Step 5. Bike sharing — uses — Bicycle. Bicycles.

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