We would like you to assess the QUALITY of each of the following argument (discussing Death Penalty) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of death penalty. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of death penalty.
Q: Mandela became leader of the ANC's armed wing, Umkhonto we Sizwe (translated Spear of the Nation, and also abbreviated MK), which he co-founded.
A: 
Invalid