Hi Laura,
Sorry for late response.
Right now that is unquantified...
We are engaged in ontology alignment activities such as 
With other initiatives listed in our issue tracker
I 'was' going to try analyzing WebDataCommons to see if SWEET URI's were 
contained anywhere.
I will say however, that SWEET is included in several OGC 
recommendations/standards. I am in the process of updating these documents to 
use the new http://sweetontology.net URI scheme.
If you are interested in joining the community get us below


On 2018/03/07 06:20:15, "Laura Morales" <laure...@mail.com> wrote: 
> Sorry for the OT question but it's the first time I learn about SWEET. Is 
> there any list of datasets/graphs using this vocabulary?
> Sent: Wednesday, March 07, 2018 at 5:28 AM
> From: "lewis john mcgibbney" <lewi...@apache.org>
> To: users@jena.apache.org
> Subject: OntModel.read parsing non-suffixed TTL as RDF/XML
> Hi Folks,
> Over on the SWEET ontology suite [0] we recently changed out canonical
> serialization to TTL. Additionally however, we removed all file suffixes
> from the resources themselves, therefore although the following resource
> [1] is serialized as TTL, you would never know unless you looked at it or
> peeked into the server response.
> I am experiencing issues when I attempt to load the SWEET 'master' file
> [2], which essentially produces a graph by importing every file within the
> ontology suite. The code I use to do this is as follows.
> ((OntModel) m).read(url, null, lang); //Where lang is the string "TTL" or
> "TURTLE" depending on previous logic.
> The stack trace I get is as follows [3]
> As you can see it loads the sweetAll file correctly but chokes on the
> imported resource http://sweetontology.net/realmSoil, which is also a TTL
> serialization but with no file suffix. The stack trace indicates that an
> attempt is being made to parse the resource as RDF/XML... which in this
> case is incorrect.
> Any hints on how to override/define this behaviour?
> Another related question, the large stack trace I receive from the above
> parsing activity seems to also indicate that the OntModel.read logic
> randomly processes imports when processing a resource such as [2]. Is this
> correct?
> Thanks for any hits folks, I appreciate it.
> Lewis
> [0] http://sweetontology.net[http://sweetontology.net]
> [1] 
> http://sweetontology.net/reprDataProduct[http://sweetontology.net/reprDataProduct]
> [2] http://sweetontology.net/sweetAll[http://sweetontology.net/sweetAll]
> [3] https://paste.apache.org/vLt8[https://paste.apache.org/vLt8]
> --
> http://home.apache.org/~lewismc/[http://home.apache.org/~lewismc/]
> http://people.apache.org/keys/committer/lewismc

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