A commemorative speech has to do with celebrating something or someone. If you want to pay tribute to someone (and there isn't a specific topic you have to talk about), you should talk about someone important to you, someone whom you love and who inspires you - it could be a family member or a friend, or someone you look up to.
For what though. Is there something there I need to see to answer the question?
Answer:
I think the structure is cause and effect. They choose to put the titles this way so the reader will have an idea about what they are reading. And lastly “Top Food Chain”
According to Cheshire Cat, March Hare is like the Hatter because
C. The March Hare is also mad.
Only the Hatter wore a hat. White
Rabbit is the other character to have a watch.
Alice is the one who fell down the rabbit hole.
Hope this helps.