For example, does the following sentence violate any grammar rules?
"Global Connections" will be showcasing internship opportunities, job openings and training programs at, challenges and issues facing, and the latest information on 30 leading global businesses.
I realize that there may be alternative ("better") ways of phrasing the above but I am not interested in improving this specific sentence; I just want to confirm whether the above structure is generally permissible according to the rules of English grammar.
I would like to emphasize that I am not looking to have the above example sentence proofread. I would like to know, first, whether it is acceptable to group nouns sharing a preposition in the fashion that I have and, second, whether it is acceptable to do this multiple times (i.e. for other nouns affiliated with other shared prepositions) in the same sentence. My gut feeling tells me that it constitutes an over-usage of "and" in the same sentence but does not specifically violate any grammar rules. I would like to know for sure whether this is the case or perhaps there exists some grammar rule I am not familiar with.