It says there that "create a variable called symbols, and store empty array on it," so I did follow that. Then on the second instruction, it says that "use .each to iterate over the strings array," Then on the third instruction, it says that "for each s in strings, use .to_sym to convert s to a symbol and use .push to add the new symbol in the symbols.
So, what I think of s is the strings stored in the strings array. So, I have to ask what is wrong about the code. It says that the "It looks like HTML isn't a symbol," and I also noticed it on the other arrays, it doesn't convert into a symbol.
Or, I misinterpreted the s in the instructions.