The question from last class is physical versus phenomenological, or observing outward behaviors of others with inference to states of mind.
Translation is a species of interpretation.
The next time you are in the computer lab listen to how people talk to or about computers. An example of semantic interpretation is a calculator. We put in the data and it puts out the data no intentionality. A Turing machine would be both intentional and semantic. The machine passes through physical transformation which we interpret as intentional or semantic.