- Leather is a kind of material
- Leather is resistant to water
- Hence, leather is a kind of water-resistant material

- Leather is a kind of water-resistant material
- If an object is made of a material then that object has the properties of that material
- So, if shoes are made of leather, then those shoes would be water-resistant

Therefore, if shoes are made of leather, then those shoes would be water-resistant
Question: Which material is the best natural resource to use for making water-resistant shoes?
Context: - If an object is made of a material then that object has the properties of that material 
- Leather is a kind of material 
- Leather is resistant to water