Sentence:  Roure did not carry his work to completion. He derived only four intermediate orbits of Pluto for the combinations of Pluto and the four outer planets, and determined the inequalities in the <WSD>Plutonian</WSD> motion under the effect of Neptune which are dependent on the first degree of <WSD>Plutonian</WSD> eccentricity and inclination. 
Meaning of the word marked with <WSD> tags:  Of or relating to the dwarf planet Pluto.