Assertion: signature block | /r/HasProperty | delimited by single line
Facets:
value: from the body of the message
type: OTHER
Source sentences:
text: The Usenet standard RFC 3676 specifies that a signature block should be displayed as plain text in a fixed-width font (no HTML, images, or other rich text), and should be delimited from the body of the message by a single line consisting of exactly two hyphens, followed by a space, followed by the end of line (i.e., in C-notation: "--