Modelling of a watermark and a signature in CIDOC-CRM

feature.ttl

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix crm: <http://http://www.cidoc-crm.org/cidoc-crm/> .
@prefix sari: <http://w3id.org/sari#> .

<https://example.sikart.ch/work/6004987> a crm:E22_Man-Made_Object ;
crm:P56_bears_feature <https://example.sikart.ch/6004987/feature/1> , <https://example.sikart.ch/6004987/feature/2> .

<https://example.sikart.ch/6004987/feature/1> a crm:E26_Physical_Feature ; 
crm:P128_carries <https://example.sikart.ch/text_object/1> ;
crm:P2_has_type <http://vocab.getty.edu/page/aat/300028749> .

<https://example.sikart.ch/text_object/1> a crm:E33_Linguistic_Object ;
rdfs:label "nicht identifizierbar»" .

<https://example.sikart.ch/6004987/feature/2> a crm:E26_Physical_Feature ; 
crm:P128_carries <https://example.sikart.ch/text_object/2> ;
crm:P2_has_type <http://vocab.getty.edu/page/aat/300028705> ;
crm:P2_has_type <#type/SIGNATURE> .

<https://example.sikart.ch/text_object/2> a crm:E33_Linguistic_Object ;
rdfs:label "bez. u. r.: «F. Hodler.»" .