railway network / linear-time algorithm / graph algorithms / fundamental graph algorithms / cheapest possible network / /
NaturalFeature
river Pregel / /
Organization
U.S. Securities and Exchange Commission / /
Person
R UP / R UP NA / R UP AK / Addison Wesley / Alexander K. Hartmann / R UP NA TH JI / Martin Weigt / C . Therefore / V / Gary Chartrand / Robert Sedgewick / /
Position
general / and therefore more complicated / ambassadors / /