About: apache lucene

Premodifier: apache
Head noun: lucene

Same concepts
http://dbpedia.org/resource/Lucene

Broader concepts

label	provenance	confidence
full-text search engine	isap:394121231	0.648495
text search engine	isap:394121219	0.637306
search engine	isap:394121228	0.579624
source project	isap:442302397	0.399758

Narrower concepts

label	provenance	confidence