Wet wipes and typewriter: what they have in common

1. Step 1. Wet wipes — is made of — Textile. Wet wipes are non-woven cloth soaked in lotion.
2. Step 2. Textile — includes — Felt. Felt is cloth without threads: wool is matted until the fibres lock.
3. Step 3. Felt — is material for — Piano. The hammers are covered with felt.
4. Step 4. Piano — has part — Keyboard. A keyboard.
5. Step 5. Keyboard — is part of — Typewriter. The keys drive levers with type.

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