symbols = [
    "°",  # degree symbol; https://en.wikipedia.org/wiki/Degree_symbol
    "℃",  # Celsius, Unit of temperature; https://en.wikipedia.org/wiki/Celsius
    "×",  # multiplication sign; https://en.wikipedia.org/wiki/Multiplication_sign
    "÷",  # division sign; https://en.wikipedia.org/wiki/Division_sign
    "—",  # em dash; https://en.wikipedia.org/wiki/Dash
    "+",  # plus signs, https://en.wiktionary.org/wiki/plus_sign
]
