Comparison of the posterior distribution of the microlensing parallax vector, π_E, for an inner-large q, u₀+ topology fitted to different combinations of datasets (from the left): only OGLE data, only MOA data, combined OGLE and MOA datasets, and OGLE data alone with an incorporated prior on π_E based on a Galactic model. The orange region marks the 1σ contour of the two-dimensional distribution, and the turquoise region marks the 2σ contour.