About: http://webisa.webdatacommons.org/299782352

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Yes, especially oak wood, some wood will not release as many tannins, for example a lot of the wood you buy at pet stores, but it really depends on the kind of wood.
http://www.w3.org/ns/prov#wasQuotedFrom	plantedtank.net