Chapter 4 Minor Typo

[Flaming87]

There is a typo on chapter 04, in the following paragraph

"Here is a cheat sheet about how dependence flows in a graph. I’ve taken from a Stanford presentation by Mark Paskin. The arrows with lines at their tips signify independence, and the arrows without lines at their tips signify dependence."

I believe that the first period ought to be removed, or there ought to be an "it" between the taken and from in the second sentence.