UMLR — What is the abstract syntax for Figure 17.27?

Figure 17.25 is very helpful to understand how interaction diagrams look like in the abstract syntax.

It is really unfortunate there is no such diagram for all the figures in the interaction chapter.
In particular, Figure 17.27 defies my ability to understand the abstract syntax behind it.

Figure 17.27 shows several elements that an Activity can own but not an Interaction:
initial state
Control flow edges
Final state
Decision node
Figure 17.27 shows several elements that an Interaction can own but not an Activity:
(inline) interaction
Duration constraint
Interaction use
Have I missed something or is there a genuine mismatch between the capabilities implied by the interaction diagram overviews per 17.10 and the actual capabilities of interactions per 17?