id	keyword
eistud-18247	state
eistud-18247	energy
eistud-18247	companies
eistud-18247	gas
eistud-18247	european
eistud-18247	union
eistud-18247	owners
eistud-18247	ownership
eistud-18247	transmission
eistud-18247	establishment
eistud-18247	storage
eistud-18247	cluster
eistud-18247	research
eistud-18247	non
eistud-18247	expert