Here are the answers to the given questions above:
1. The kind of relationship that the words show is synonyms. This means, both words have the same meaning.
2. The word that would best fit the given analogy would be an oil rig. The answer is the first option.
3. The word that would best fit the given analogy would be RECIPE.
4. The word that would best fit the given analogy would be Happy Birthday to You:music.
Hope these answers help.