I don't mean to get all Philosophy 101 on you, but...
Some *humans* gather up a suite of sketches, and arbitrarily assign semantic definitions to each example. Then, a neural network, one that THEY trained, amazingly happens to agree with THEIR assigned definitions.
To make my point crystal clear, in your mind, replace the sketches with Rorschach Inkblots.
Who decided what the "correct" answers were?
And who trained the neural net?
See the issue?