The original sentence was interrogative and used「AはBよりC」construction in it
I could have written something, using simpler constructions but I decided to use the construction with 「同じ」, and faced some troubles.
First off, I didn't know where to put 「さくら」 and 「早く」. I've tried some variants but decided to write it this way since it looked to me like the most correct one:
and I believe that they are incorrect.
Second off, I wonder if I can change the topic of the sentence by replacing one city with another. What I wanted to do is to put some kind of an emphasis on the fact that Tokyo's sakura blossom does not differ from Kyushu's and starts at almost the same time. Was it successful? And can I actually do so? Can I change the topic of the answer from 「九州」 to 「東京」even though the topic of the question is 「九州」?
Also, I'd like to know the function of 「で」 here. I know that 「noun + で + verb」 means, that the noun is the place where an action is/was taking place, but I'm not sure about it when it's combined with は. Does it mean that the place of action IS THE TOPIC and does it put emphasis on this very place?
P.S. I understand that Kyushu's sakura blossom is more likely to happen earlier because the island lies to the south of Japan, whereas Tokyo is almost in the middle, but what if we imagine that it's possible? Can I answer the question by replacing 「九州」 with 「東京」, making 「東京」be in the first place?