There are a number of specific causes of action, including: contract-based actions, statutory causes of action, torts such as assault, battery, invasion of privacy and fraud. The points a plaintiff must prove to win a given type of case are called the "elements" of that cause of action. For example, for a claim of negligence, the elements are: the (existence of a) duty, breach (of that duty), proximate cause (legal cause), and damages. If a complaint does not allege facts sufficient to support every element of a claim, the court, upon motion by the opposing party, may dismiss the complaint for failure to state a claim for which relief can be granted.