resource | (resource ?PROCESS ?RESOURCE) means that ?RESOURCE is present at the beginning of ?PROCESS, is used by ?PROCESS, and as a consequence is changed by ?PROCESS. For example, soap is a resource in the following proposition: the gun was carved out of soap. Note that resource differs from instrument, another subrelation of patient, in that it is structurally altered in some way by the Process | Object | Process | (=> (exploits ?OBJ ?AGENT) (exists (?PROCESS) (and (agent ?PROCESS ?AGENT) (resource ?PROCESS ?OBJ))))
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