input: [Mile] 47 [Time] 12:27:29 [Pace] 12:58 [Remarks] 
output: as the course turns downhill for the final few miles I jog a minute and walk a minute alternately --- and that feels so good that I start to jog continuously, thinking about Eric Clifton's philosophy of ultrarunning; a race official in a pickup truck pulls alongside me and asks how I'm doing ... she has been asked to follow me in to the finish, and does so from a discreet distance behind me