
CORD-19:99878b27abf822d05c58aca2be825dd6652e9551 / 8444-8616 2 Projects
Annnotations
Id | Subject | Object | Predicate | Lexical cue |
---|---|---|---|---|
TextSentencer_T47 | 0-172 | Sentence | denotes | New technologies of horizontal drilling and hydraulic fracturing (aka fracking) allowed US energy companies to tap into vast reserves of unconventional (tight) oil and gas. |