In experiments,<cite> Barzilay and Lapata (2008)</cite> assume that articles taken from Encyclopedia Britannica are more difficult to read (less coherent) than the corresponding articles from Encyclopedia Britannica Elementary, its version for children. We follow them with regard to data (107 article pairs), experimental setup and evaluation. Sentences in the Britannica Elementary are simpler and shorter than in the Encyclopedia Britannica. The entity graph does not take into account the effect of entities not shared between sentences while the normalized entity graph assigns a lower weight if there are more of these entities. Hence, Britannica Elementary receives a higher cohesion score than Encyclopedia Britannica in our model.