Question: What is the other half of the coordinates for the Tagus River whose one half in -1.6975?
Paraphrase: Name the other half of Tagus River's coordinates apart from -1.6975
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q14294 p:P625 ?s . ?s ps:P625 ?x filter(contains(?x , '-1.6975')) . ?s pq:P518 ?value}