Assertion: suffix | /r/HasProperty | convention
Facets:
value: for having one or more characters
type: CAUSE
value: in computer system file names
type: OTHER
Source sentences:
text: In computer system file names, a suffix is a convention for having one or more characters appended to a file name (usually separated from the file name with a dot) so that it can be distinguished from other files or grouped together with similar types of files.