@David, Moderator posted:
Hi, deepcosmos -- It does not work to say, *"They is an example of something." I'm not inclined to speculate on the psychological causes of the writer's grammatical error, which I do not think can be rescued by postulating inversion, though that is clever of you. Alas, the author did not write, "The self-driving car is an example of a joint cognitive system." That would have worked well.
I'm really fortunate to be able to get two replies from you even in weekend, David.