<http://data.silknow.org/object/d144ba45-6cc4-371f-8ea0-d7af9c348a2c/observation/2>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.ics.forth.gr/isl/CRMsci/S4_Observation> .
<http://data.silknow.org/object/d144ba45-6cc4-371f-8ea0-d7af9c348a2c/observation/2>	<http://erlangen-crm.org/current/P3_has_note>	"Etching by Rembrandt van Rijn, 'Self portrait with his wife Saskia', 1636, second state, printing on silk from original copper plate in the 18th century"@en .
<http://data.silknow.org/object/d144ba45-6cc4-371f-8ea0-d7af9c348a2c/observation/2>	<http://erlangen-crm.org/current/P2_has_type>	<http://data.silknow.org/observation/general-observation> .
<http://data.silknow.org/object/d144ba45-6cc4-371f-8ea0-d7af9c348a2c/observation/2>	<http://www.ics.forth.gr/isl/CRMsci/O8_observed>	<http://data.silknow.org/object/d144ba45-6cc4-371f-8ea0-d7af9c348a2c> .