This tongue is slightly unusual in that it clearly shows us the exact location of a pathogenic factor. The chest area is clearly more Swollen than the rest of the tongue indicating the presence of Phlegm in the Upper Burner. 

As a general rule, the tongue body shows more the presence of Phlegm and the coating reflects the presence of Dampness. When the tongue body is Swollen and the coating is sticky, as in this case, it normally indicates the presence of Damp-Phlegm, in this case clearly in the Lungs.