part of realized in objective_achieved_by characteristic of has characteristic concretizes role investigation investigation agent role Philly2013: Historically, this role would have been borne only by humans or organizations. However, we now also want to enable investigations run by robot scientists such as ADAM (King et al, Science, 2009) A role borne by an entity and that is realized in a process that is part of an investigation in which an objective is achieved. These processes include, among others: planning, overseeing, funding, reviewing.