It’s an example of an intermediate good, a service that is not expected to change in the short term (eg., it’s an emergency response) but changes over time.
The example is an example of a middle-level good, a service that is expected to change in the short term eg., its an emergency response but changes over time.
Your second example is a little more complicated. In this case it’s an example of a service that is expected to change over time. If you were to consider the service to be an intermediate good it would be a service that is expected to change over time.
The other example is an intermediate good, a service that is expected to change in the short term eg., its an emergency response but changes over time. In this case its an example of a middle-level good, a service that is expected to change over time.
In the context of a service, the intermediate good would be something like an emergency response, the service in question is expected to change over time and the good or service would be an intermediate good.
As you can see, we have a lot of examples of intermediate goods and services changing over time.
In the example above the service is expected to change over time but there are plenty of examples of intermediate goods and services that will change over time but are not expected to be replaced.
As you can see, we have examples of intermediate goods and services that will be replaced but are not expected to be replaced. It’s very hard to get to a service that is more than a bit less than the original, but that is what separates the difference between the service and the original.
For example, if we want to replace a toilet seat, but are not expecting to replace it within the year, we’re still more than likely talking about the original toilet seat. A good toilet seat will last longer than the original but not as long as the new one. A good toilet seat can be replaced but there is no guarantee that it will be replaced.
The difference between the original and the new is that the new will not be as good or as long lasting. The original toilet seat will last longer, but it will not be as good.