This is the 16977th most frequent Russian word.
состоят
"Состоят" means "consist of."
The word 'состоят' indicates composition, meaning that books are made up of pages.
Книги состоят из множества страниц.
Books consist of many pages.
Here, 'состоят' is used to describe where the success lies or is rooted.
Успехи компании состоят в её инновационных подходах.
The company's successes lie in its innovative approaches.
In this example, 'состоят' represents the makeup of lectures, showing their components.