We would like you to assess the QUALITY of each of the following argument (discussing Gay Marriage) 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 gay marriage. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gay marriage.
--------
Question: It can't be proven that opposite-sex marriage is harmless, it can't be proven that alcohol use is harmless, it can't be proven that airbags or seatbelts are harmless, even.

Answer: Valid


Question: As shown last year with Mark Foley, there are lots of gays who work for repuke congress people on capital hill.

Answer: Invalid


Question: Gay applicants may say and believe they will raise their child objectively to sexual preference, but this may not be the case a Childs mind is very simple.

Answer:
Valid