You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "sodium or potassium salts of heavier fatty acids are called?" whose answer is soaps.
Each document should contain about 30 words, and these documents should contain useful information.

Query: sodium or potassium salts of heavier fatty acids
Useful Output:

Doc 1: Answer: Sodium or potassium salt of higher fatty acid is termed soap. Explanation: hope it helps you. good morning. have a great day ahead.
Doc 2: Sodium or potassium salts of higher fatty acids are called Class: 12 Subject: CHEMISTRY Chapter: CARBOXYLIC ACID AND THEIR DERIVATIVES
Doc 3: Basically, soaps are Na+/ K+ or Li+ salts of fatty acids.Sodium salts are common bathing soaps you use them for washing purposes.
Doc 4: Potassium salts of fatty acids refer to a compound used mainly in food additives and pest control. It possesses quite a lot of good qualities
Doc 5: Soaps are sodium or potassium salts of higher fatty acids, such as stearic, oleic, and palmitic acids, that have more than 12 carbon atoms.