4.2 Null Match

The query "example" produces the response "Welcome to the DOTGO example." The system again used the first word of the query "example" and the phone number DOTCOM (368266) through which the query was received to determine that the query should be routed to example.com, and the system again retrieved the file index.cmrl from example.com, and the system again compared the remainder of the query (which was again an empty string) against the match patterns specified in the file index.cmrl to resolve the query. But in this case, the empty string was matched to the "null" match pattern (i.e. the empty string), which resolved to the message "Welcome to the DOTGO example."