E. People say that something is ~, can use this sentence with: alleged, believed, considered, expected, known, reported, thought, understood.
E1. These structures are often used in news reports.
E2. Sometimes (it is) supposed to ~ = (it is) said to ~ We use supposed to say what is intended, arranged. Often this is different from the real situation.
E3. You’re not supposed to do something = it is not allowed or advisable.