Context: Web browsers consist of a user interface, layout engine, rendering engine, JavaScript interpreter, UI backend, networking component and data persistence component. These components achieve different functionalities of a web browser and together provide all capabilities of a web browser.

Question: A user interface, UI backend, layout engine and other things are part of what?
Answer: Web browsers

Question: The layout engine, rendering engine, user interface and other things are components that offer different what of web browsers?
Answer: functionalities

Question: What are two things that make up a UI backend?
Answer: Unanswerable

Question: What does a JavaScript interpreter achieve in a layout engine?
Answer: Unanswerable

Question: What do a rendering engine and a user interface create when only used with each other?
Answer: Unanswerable

Question: What parts of a layout engine make up a data persistence component?
Answer: Unanswerable

Question: What does a user interface achieve when part of a UI backend?
Answer: Unanswerable