TASK DEFINITION: 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.
PROBLEM: The only problem is that some human has to build and program it.

SOLUTION: Invalid

PROBLEM: Life imprisonment without parole is more effective than execution, and it is cheaper.

SOLUTION: Valid

PROBLEM: Recommending the death penalty for homosexuality is a speech of ignorance and childishness.

SOLUTION:
Invalid