1. A method comprising: by an access module that comprises one or more processors of a machine, accessing person profiles that each describe a different person but reference a common entity, a portion of the accessed person profiles each including a common token that describes a corresponding different person, the entity having an entity profile that lacks the common token; by a determination module that comprises one or more processors of the machine, generating a first probability that the common token occurs within the accessed person profiles; by the determination module that comprises one or more processors of the machine, accessing a second probability that the common token occurs within a superset of person profiles that includes the accessed person profiles; by the determination module that comprises one or more processors of the machine, determining that the common token is descriptive of the entity based on a statistical divergence between the first and second probabilities, the statistical divergence indicating that the common token is overrepresented among other tokens shared in common by the accessed person profiles; and by a generation module that comprises one or more processors of the machine, generating a supplemental profile for the entity, the supplemental profile including the overrepresented common token determined to be descriptive of the entity based on the statistical divergence between the first and second probabilities.