Complex sentence: The value (or list of values, or range) is usually separated from the corresponding statement sequence by a colon or an implication arrow, and, in many languages, each case must also be preceded by a keyword such as case or when.
Split into simpler sentences: The value (or list of values, or range) is usually separated from the corresponding statement sequence by a colon or an implication arrow. In many languages, every case must also be preceded by a keyword such as case or when.