Sentence:  alizarin crimson , orange , raw sienna , raw umber , burnt sienna , sepia , cerulean blue , cobalt blue , French ultramarine blue , Winsor green , Hooker's green 2 , cadmium yellow pale , <WSD>yellow</WSD> ochre , Payne's gray , charcoal gray , Davy's gray , and ivory black '' . 
Meaning of the word marked with <WSD> tags:  pigment consisting of a limonite mixed with clay and silica