Imagine the following hypotetical situation.
For example the organization runs a big online store, like Amazon. There are four Scrum teams each one having their Scrum ceremonies. Each team is responsible for a separate application/module, let's say "Ordering Process", "Advertising", "Stock Management" and "Dynamic Prices". The teams are cross-functional, in terms of each team can do "Front End", "Back End", "Reports", "External Interfaces" (which is not always the case in real-life).