Given the task definition and input, reply with output. This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Passage: The Canadian Special Operations Forces Command (CANSOFCOM) is a formation capable of operating independently but primarily focused on generating special operations forces (SOF) elements to support CJOC. The command includes Joint Task Force 2 (JTF2), the Canadian Joint Incident Response Unit (CJIRU) based at CFB Trenton, as well as the Canadian Special Operations Regiment (CSOR) and 427 Special Operations Aviation Squadron (SOAS) based at CFB Petawawa.
what does CANSOFCORN stand for?