A set of SPARQL examples that are used in LOTUS
Chemicals which should have an isomeric SMILES but do not.
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
#title: Chemicals which should have an isomeric SMILES but do not
SELECT ?structure ?inchi WHERE {
?structure wdt:P234 ?inchi.
OPTIONAL { ?structure wdt:P2017 ?smiles_i. }
FILTER(!(BOUND(?smiles_i)))
FILTER(REGEX(STR(?inchi), "/[btsmi]"))
}
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v1("?inchi"):::projected
v2("?smiles_i")
v3("?structure"):::projected
f0[["regex(str(?inchi),'/#91;btsmi#93;')"]]
f0 --> v1
f1[["not bound(?smiles_i)"]]
f1 --> v2
v3 --"wdt:P234"--> v1
subgraph optional0["(optional)"]
style optional0 fill:#bbf,stroke-dasharray: 5 5;
v3 -."wdt:P2017".-> v2
end