The Oxford Companion to Beer, abbreviated OCB, is a book in the series of Oxford Companions published by Oxford University Press. The book provides an alphabetically arranged reference to beer, compiled and edited by Garrett Oliver with a foreword by U.S. chef Tom Colicchio. Published in 2011, the work draws on 166 contributors from 24 countries to amass over 1,100 entries on beer.
Garret Olivers initials are GR
His initials should be GO, not GR. I'm think the model is unable to interpret names to initials.