Following Martha's advise I am splitting up a question Compound sentences, the punctuation and mooore.
Consider the following sentence:
One of the items that needed a further development was a research on child nodes of a story representing its sub categories being updated the moment the list of sub categories is changed through edit page for stories.
While I indeed wanted to practice compound sentences (see a question Constructing compound sentences), another reason why this sentence is so complex is that I don't know how to split it into smaller parts. Could you help me with it?
If you need the context please read a post from the second link.