sparql starts with synbtax code example
Example: sparql if bound query
// Don't forget to bind it to a varible
// if you're using it in a select clause
select ?name ?age ( if(bound(?gen), ?gen, 'None') as ?gender )
// Don't forget to bind it to a varible
// if you're using it in a select clause
select ?name ?age ( if(bound(?gen), ?gen, 'None') as ?gender )