What steps will reproduce the problem?

1. Load the Italian Opera topic map (opera.xtm) into Omnigator

2. Execute the following tolog query:

select $TOPIC
from
 $query = "med*",
 topic-name($TOPIC, $TN),
 value-like($TN, $query) 
?
3. You will get the message:

Error: Variable $query not bound in predicate value-like

What is the expected output? What do you see instead?

Expected to get a list of topics whose name(s) matched "med*"

Please use labels and text to provide additional information.

Ontopia 5.1.0 was used.

The output of Analyze Query is:

Query:

select $TOPIC
from
 $query = "med*",
 topic-name($TOPIC, $TN),
 value-like($TN, $query) 
?

Parsed query:

select $TOPIC from 
value-like($TN, $query)
, =($query, "med*")
, topic-name($TOPIC, $TN)
?