Objects are situated in events.

The relation of situation is a different relation for each type of object, and in the case of sense-objects it cannot be expressed as a two-termed relation.

It would perhaps be better to use a different word for these different types of the relation of situation.
It has not however been necessary to do so for our purposes in these lectures.

It must be understood however that, when situation is spoken of, some one definite type is under discussion, and it may happen that the argument may not apply to situation of another type.

In all cases however I use situation to express a relation between objects and events and not between objects and abstractive elements.