Yup, it depends on the type of data being searched for and how the information is represented in the corpus. It also depends on how information is distributed:

Yup, it depends on the type of data being searched for and how the information is represented in the corpus. It also depends on how information is distributed: IME often longer legal documents have a lot of cross referencing, so you need multiple clauses to collate a single answer. It’s an interesting area.