Conversation so far:
What were the listeners views on the song?
Questions arose among listeners: what did Billie Joe and his girlfriend throw off the Tallahatchie Bridge, and why did Billie Joe commit suicide.
What were some other views?
She named flowers, an engagement ring, a draft card, a bottle of LSD pills, and an aborted baby as the most often guessed items.
What were the author views on the story?
Although she knew definitely what the item was, she would not reveal it, saying only "Suppose it was a wedding ring.
What are some other interesting aspects of this article?
The story of Billie Joe has two more interesting underlying themes.

Question: What were these themeS?
Self-contained rewrite: What were two more interesting themes to the story of Billie Joe?