All sunflowers are sunny and this plant is sunny, so this plant is not a sunflower. The formal structure of the above reasoning is most similar to:. ['All professional sprinters wear spiked shoes. Xiao Li is not a professional sprinter, so Xiao Li does not wear spiked shoes.', 'All taxpayers have deposits, this girl has deposits, so this girl is a taxpayer.', 'All bailiffs work in court, and Xiao Wang works in court, so Xiao Wang is a bailiff.', 'The shell of all pencils is made of wood, this pen is made of aluminum, so this pen is not a pencil.']