Appian Way Productions is a film production company in West Hollywood, California, established by actor and producer Leonardo DiCaprio. As of 2016, the company has produced 14 feature films, five documentaries and a television show. It has frequently collaborated with Martin Scorsese, who has directed some of the company's most well-known films.
The acronym for Appian Way Productions would be AWP. 
This is correct because an acronym typically represents a string of words in a shortened form, and each letter in the acronym represents the first letter of each word in its extended version. I think it was difficult for the system because it doesn't understand the definition of an acronym, which is common knowledge among native English speakers. 