Come up with a question and stream of consciousness reasoning that would justify this answer: 12

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The question is: Johnny is out walking his two dogs at night, and his son joins him for the walk. How many legs' worth of organisms are traveling together for this walk?
Stream of consciousness: As Johnny and his son are humans, and humans walk on two legs, this means that between the two of them there are 2 * 2 = 4 legs' worth of organisms. There are two dogs walking along as well, and since dogs walk on 4 legs this means there are 2 * 4 = 8 legs' worth of organisms. We add these two totals together to find there are 4 + 8 = 12 legs' worth of organisms in total.
