Yes / no, is the following a verifiable fact?
"A Swallowtail butterfly pollinates gardens and are flying insects."
Chain of thought and solution for this question is:

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.
user
Swallowtail butterflies are insects that carry pollen from one plant to another.
So, the answer is yes.