d7f-1abd-559a-9ce8-74cad9ff1eb4

Property	Value
?:author	claimskg:creative_work_author/a66e8798-ea1f-5f37-a4d2-a6cd72c9b4ee
?:citation	<https://www.facebook.com/help/1952307158131536?helpref%3Drelated> <https://www.facebook.com/knowablepage/photos/a.149603142064774/942287196129694/?type%3D3%26theater> <https://www.theguardian.com/science/2003/sep/08/sciencenews.theguardianlifesupplemen?>
?:datePublished	2019-08-28 (xsd:date)
is ?:itemReviewed of	claimskg:claim_review/430f1d2a-0536-541d-b09f-c3d250146e22
?:keywords	claimskg:keyword/031df935-6936-5d1e-8bbf-baf66df0f7e9 claimskg:keyword/cde44311-339f-5467-9c3d-cb18b373707f claimskg:keyword/f9405153-6c33-5c7e-b40b-48031124ab47
?:text	A duck’s quack doesn’t echo and nobody can figure out why. (en)
rdf:type	<http://schema.org/CreativeWork>