Head noun: proficient

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

Broader concepts

labelprovenanceconfidence
labelisap:4749286210.412940
thingisap:4763418600.101237
youreisap:4757105690.096562
classisap:4761846590.070289

Narrower concepts

labelprovenanceconfidence
englishisap:2436063850.234044
excelisap:2600615530.179497