Which term would NOT relate to a legal action?

The term "Liberalization" does not directly relate to a legal action in the same way the other terms do. In a legal context, mandamus refers to a court order compelling someone to execute a duty that they are legally obligated to complete. Litigate refers to the process of taking legal action or resolving disputes through the legal system. Liability involves legal responsibility for one's actions or the obligation to compensate for harm caused to others.

In contrast, liberalization generally refers to the process of removing restrictions, regulations, or controls, often in the context of economic policies or social structures. While it may have implications for laws or regulations, it does not directly pertain to a specific legal action or process like the other terms mentioned. This distinction highlights why liberalization is the term that does not fit in this context.