turtle-rdf

问题 I have the following data graph: @prefix hr: <http://learningsparql.com/ns/humanResources#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix sch: <http://schema.org/> . @prefix xml: <http://www.w3.org/XML/1998/namespace> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . hr:Another a rdfs:Class . hr:Employee a rdfs:Class ; rdfs:label "model" ; rdfs:comment "a good employee" . hr:Longer a hr:Employee ; rdfs:label

问题 Supposing we have the following triple in Turtle syntax: <http:/example.com/Paul> <http:/example.com/running> <http:/example.com/10miles> . How do I add a start and end time? For example if I want to say he started at 10 am and finished his 10miles run at 12 am. I want to use xsd:dateTime . 回答1: One way of doing this is through reification - making statements about the statement. Here, you have a choice of giving the statement a URI, so that it's externally dereferenceable, or using a blank

问题 Supposing we have the following triple in Turtle syntax: <http:/example.com/Paul> <http:/example.com/running> <http:/example.com/10miles> . How do I add a start and end time? For example if I want to say he started at 10 am and finished his 10miles run at 12 am. I want to use xsd:dateTime . 回答1: One way of doing this is through reification - making statements about the statement. Here, you have a choice of giving the statement a URI, so that it's externally dereferenceable, or using a blank

问题 I am trying to design an ontology that will categorise products based on the products components. In the example below I have a class Ingredient with an instance eggs . I want to add apple_tart to all classes of products that do not contain eggs . So in this case apple_tart will be added to the class GlutenFriendly and NOT VeganFriendly . bakery:VeganFriendly rdf:type owl:Class ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty :hasIngredient ; owl:hasValue :eggs ] owl:disjointWith

问题 I am writing a SPARQL query that should delete all triples within in this resource. prefix oslc: <http://open-services.net/ns/core#> prefix example: <http://rdf.company.com/ns/something/net#> prefix xsd: <http://www.w3.org/2001/XMLSchema#> prefix dcterms: <http://purl.org/dc/terms/> prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> example:Resource2 a oslc:ResourceShape ; oslc:describes example:Resource2 ; oslc:property [ a oslc:Property ; oslc:isMemberProperty true ; oslc:name "pgn"

问题 I have a file which has a structure, but I don't know what format it is, nor how to parse it. The file extension is ttl, but I have never encountered this before. Some lines from the file looks like this: <http://data.europa.eu/esco/label/790ff9ed-c43b-435c-b6b3-6a4a6e8e8326> a skosxl:Label ; skosxl:literalForm "gérer des opérations d’allègement"@fr . <http://data.europa.eu/esco/label/98570af6-b237-4cdd-b555-98fe3de26ef8> a skosxl:Label ; esco:hasLabelRole <http://data.europa.eu/esco/label

问题 I’m using the OWL API (3.4.8 for compatibility reasons) for the first time, and I’m trying to load an ontology that is provided as part of the YAGO knowledge base (http://resources.mpi-inf.mpg.de/yago-naga/yago3.1/yagoSimpleTaxonomy.ttl.7z). However I keep getting the following warning: [main] WARN org.obolibrary.oboformat.parser.OBOFormatParser - LINE: 629693 Expected white space at pos: 44 LINE: <wikicat_Gardens_in_Aomori_Prefecture> rdfs:subClassOf <yagoGeoEntity> . (I just copied one

问题 Consider the following instance of SomeClass : instances:some_thing1 a semapi:SomeClass ; semapi:hasChainTo ( [ ... ] [ ... ] [ ... ] ) . I need every instance ( some_thing2 , some_thing3 , etc.) to have its hasChainTo property point at the same list of blank nodes (as in there is only one copy of it). I need to maintain the list of blank nodes syntax because the chains get very deep and this syntax is very fluid for writing out each chain (for SomeClass2 , SomeClass3 , etc.). If I simply

问题 I'm trying to encode some botanical data in Turtle format, and read this data from Python using RDFLib. However, I'm having trouble, and I'm not sure if it's because my Turtle is malformed or I'm misusing RDFLib. My test data is: @PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @PREFIX p: <http://www.myplantdomain.com/plant/description> . p:description a rdfs:Property . p:name a rdfs:Property . p:language a rdfs:Property . p

问题 I have a file in .ttl form. It has 4 attributes/columns containing quadruples of the following form: (id, student_name, student_address, student_phoneno) . (id, faculty_name, faculty_address, faculty_phoneno) . I know how to parse .n3 form triples with RDFLib; from rdflib import Graph g = Graph() g.parse("demo.nt", format="nt") but I am not sure as to how to parse these quadruples. My intent is to parse and extract all the information pertaining to a particular id. The id can be same for both