Encountered " "<" "< "" at line 1, column 15. Was expecting: <IRIref> - sparql

Question

Trying to use the query in the endpoint. The query was created in SPARQL. The error coming like
Encountered " "<" "< "" at line 1, column 15.
Was expecting:
<IRIref> ...
Query:
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?Class ?Title ?Definition
WHERE {
?Value rdfs:label ?Class
FILTER regex(?Class, "Motion") .
?def rdfs:domain ?Value .
?def rdfs:label ?Title .
?def rdfs:comment ?Definition}
The url
http://localhost:3030/skosmos/query?query=
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?Class ?Title ?Definition
WHERE {
?Value rdfs:label ?Class
FILTER regex(?Class, "Motion") .
?def rdfs:domain ?Value .
?def rdfs:label ?Title .
?def rdfs:comment ?Definition
}

Answer 1

I took your original query, URL-encoded it with one of many services and tools you might use, randomly selected from a web search, and appended it to the start of what you had as "the URL", http://localhost:3030/skosmos/query?query= ... and you verified that this worked --
http://localhost:3030/skosmos/query?query=PREFIX+rdfs%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%0D%0A%0D%0ASELECT+%3FClass+%3FTitle+%3FDefinition%0D%0AWHERE+%7B%0D%0A%3FValue+rdfs%3Alabel+%3FClass%0D%0AFILTER+regex%28%3FClass%2C+%22Motion%22%29+.%0D%0A%3Fdef+rdfs%3Adomain+%3FValue+.%0D%0A%3Fdef+rdfs%3Alabel+%3FTitle+.%0D%0A%3Fdef+rdfs%3Acomment+%3FDefinition%7D