; \b[A-Za-z0-9]{2,5}\b \b[@_a-zA-Z]+[@_a-zA-Z0-9]*\b (\#\$[0-9a-fA-F]+)| (\#\-{0,1}[0-9]+)| (-{0,1}[0-9]+) (\$[0-9a-fA-F]+)