PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX cidoc:<http://www.cidoc-crm.org/cidoc-crm/>
PREFIX pho:<http://www.co-ode.org/ontologies/ont.owl#>
PREFIX time:<http://www.w3.org/2006/time#>

SELECT  ?date ?lieu ?quai ?longueur ?date_f?sources
 WHERE {
          ?quai rdf:type pho:quai_brest.
          ?quai pho:profondeur ?profondeur.
          ?quai pho:longueur ?longueur.
            ?addition rdf:type pho:addition_quais.
  	  ?addition cidoc:P110_augmented ?quai.
         
        
          ?addition time:hasBeginning ?instant .  
          ?instant rdf:type time:Instant.
           ?instant time:inXSDgYear ?date.
         OPTIONAL {  ?addition time:hasEnd ?instant_f.  
          ?instant_f rdf:type time:Instant.
           ?instant_f time:inXSDgYear ?date_f.}
             ?lieu rdf:type pho:lieu.
           ?quai cidoc:P53_has_former_or_current_location ?lieu.
           ?addition cidoc:P70i_is_documented_in ?sources	}
          
           
           
            ORDER BY ?date