Punctuation and symbols
Parentheses (alpha), brackets [beta], braces {gamma}, and angle markers <delta>.
Quotes: 'single' and "double"; separators: colon, semicolon, comma, slash /, and backslash.
Math-like symbols use ASCII: 18 + 7 = 25, 9 - 4 = 5, 3 * 6 = 18, and 20 / 4 = 5.
Percent 42.5%, currency USD 1,250.00, and version 2.4.1 remain adjacent to punctuation.
