This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
Q: In some jurisdictions, copyright or the right to enforce it can be contractually assigned to a third party which did not have a role in producing the work. When this outsourced litigator appears to have no intention of taking any copyright infringement cases to trial, but rather only takes them just far enough through the legal system to identify and exact settlements from suspected infringers, critics commonly refer to the party as a "copyright troll." Such practices have had mixed results in the U.S.
A:
Who can be assigned a contract to enforce a copyright in some jurisdictions?