I created two new content types :Activity and Person.
Activity has several fields that one of them (the title) is called "Activity Name"
Activity can be something like Reading,Writing,Eating etc..."
Person has several fields that one of them is activities where I want the user to be able to select activities names for the new Person (from a combo/list/tree).
The Person's activities must be of the Activity content type.
Is it possible to do it without coding, just by using and configuring modules (any modules) ?
Note that when new activities are created, then a Person can be manually updated and add or remove activities.