This is the example word count data from Laver, Benoit and Garry's
(2003) Table 1. Documents R1 to R5 are assumed to have known positions:
-1.5, -0.75, 0, 0.75, 1.5. Document V1 is assumed unknown, and will have a
raw text score of approximately -0.45 when computed as per LBG (2003).