I certainly want to add my thanks and congratulations to Dr. Henry Friesen, who has provided leadership to the country as head of the Medical Research Council for a long period of time, and who has worked very hard to move that model toward the one we have today, and who in fact talked himself out of a job.
Dr. Henry Friesen was dilligent.
he worked very hard according to the Agent, so yes, dilligent. 
( z1 dilligent :domain ( z2 doctor :name ( z3 name :op "Henry" :op "Friesen" ) ) )