sparql - bind doesn't seem to be working on all items -

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this minimum data

prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> prefix owl: <http://www.w3.org/2002/07/owl#> prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> prefix xsd: <http://www.w3.org/2001/xmlschema#> prefix rs: <http://www.semanticrecommender.com/rs#> prefix mo: <http://www.musicontology.com/mo#> prefix  : <http://www.musicsemanticontology.com/mso#>  mo:5th_symphony_for_beethoven mo:germansymphony . mo:nabucco_overture mo:operaoverture . rs:operaweek2016 rs:temporalcontext ; rs:appliedonitems  mo:operaoverture . rs:symphonyfestival2016 rs:temporalcontext ; rs:appliedonitems mo:germansymphony .

this query

prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> prefix owl: <http://www.w3.org/2002/07/owl#> prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> prefix xsd: <http://www.w3.org/2001/xmlschema#> prefix rs: <http://www.semanticrecommender.com/rs#> prefix mo: <http://www.musicontology.com/mo#> prefix  : <http://www.musicsemanticontology.com/mso#>  select distinct ?item ?temporalcontextweight ?temporalcontext ?itemclasstemporal            {   {     values (?item) {(mo:new_world_symphony)(mo:nabucco_overture)(mo:5th_symphony_for_beethoven )}   }   optional           {               ?temporalcontext                       rdf:type           rs:temporalcontext ;                       rs:appliedonitems  ?itemclasstemporal .             ?item     rdf:type           ?itemclasstemporal      values ?temporalweight {100000}           }         values ?defaultnotemporalcontext2 { 1 }          bind(if(bound(?temporalweight), ?temporalweight, ?defaultnotemporalcontext2) ?temporalcontextweight)       }

this result

enter image description here

as see, there 1 row each item, however, there should 2 rows, because have two instances of rs:temporalcontext class, , if item not class ?itemclasstemporal, there bind bind default value

this replication of problem, real query , real data complex

update

after first answer can see reason why binding not working, however, updated question bellow , still binding or else not working

prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> prefix owl: <http://www.w3.org/2002/07/owl#> prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> prefix xsd: <http://www.w3.org/2001/xmlschema#> prefix rs: <http://www.semanticrecommender.com/rs#> prefix mo: <http://www.musicontology.com/mo#> prefix  : <http://www.musicsemanticontology.com/mso#>  select distinct ?item ?temporalcontextweight ?temporalcontext ?itemclasstemporal            {   {     values (?item) {(mo:new_world_symphony)(mo:nabucco_overture)(mo:5th_symphony_for_beethoven )}   }   optional           {               ?temporalcontext                       rdf:type           rs:temporalcontext ;                       rs:appliedonitems  ?itemclasstemporal .     optional{#new             ?item     rdf:type           ?itemclasstemporal      values ?temporalweight2 {100000}     }#new     bind(if (bound(?temporalweight2), ?temporalweight2, 1) ?temporalweight)           }         values ?defaultnotemporalcontext2 { 1 }          bind(if(bound(?temporalweight), ?temporalweight, ?defaultnotemporalcontext2) ?temporalcontextweight)       }

look there optiona of trible ?item ?itemclasstemporal

mo:new_world_symphony => no optional match => 1 row.

simplifying:

select *   {  ?temporalcontext               rs:appliedonitems  ?itemclasstemporal .     ?item     rdf:type           ?itemclasstemporal   }

has 1 match each ?item.

for specific ?temporalcontext there 1 rdf:type rs:temporalcontext.


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