Rate the following argument fragment on its writing, argument, and language skills:
Evidence: Humans can tell if someone is sad or worried etc. by their facial expressions. Because of this we know peoples feelings sometimes. We would have trouble describing exactly what they were feeling just by looking at their face but, thats what the Facial Action Coding System does. This is saying that people can't tell exactly what other people are feeling just by their faces so that what the Facial System does.

Score: 1