question:Provide the topics in the sentence: colorful autumn leaves falling from a tree.

question:Maggie and Lisa went shopping, but they didn't find anything they liked. Can the pronoun they be replaced with Maggie and Lisa? Yes or no?

question:The phone battery died because it wasn't charged. In the previous sentence, can the pronoun it be replaced with the phone? Yes or no?

question:Given that the moon is the only natural satellite of the planet Earth, which makes it the fifth largest moon in the Solar System. It is believed that the moon was formed around 4.5 billion years ago. Therefore, it must be true that The moon is older than the oldest known dinosaur fossil.? Yes, no, or maybe?