Answer: The core of a topic, the facts that make the topic
Answer:
I don't know if this answers your question, but the character for sing is 唱(chàng). To look for this character, the first radical that Annie should look for is 口(kǒu) because it is the first radical of this character.
If you have a question just ask and I will help. I can't tutor but I can help yoyu with any asl questions. ( I'm hard of hearing)