Students read a short introduction to the focus and content of the information contained in the lecture. And they also read a synopsis of the focus and content of the information contained in the lecture.
a short introduction to - - \ and ............................................the focus and content of the information ... synopsis of - - - - - - - - / ___________
It's not a common structure, but it's necessary when the correct accompanying preposition is not the same for both nouns or ve