Question: What is the radio interferometer with the lowest operating angular resolution?
Paraphrase: what radio interferometer has the lowest operating angular resolution?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q349772 . ?ent wdt:P3439 ?obj . ?ent wdt:P31 wd:Q349772. } ORDER BY ASC(?obj)LIMIT 5 
Answer: Very Small Array, Korean VLBI Network, AMiBA, Korean VLBI Network, AMiBA