Simulated I-band microlensing light curves for Event 1 (left) and Event 2 (right). Event 1 represents a typical event with a strong parallax signal, whereas Event 2 represents a typical event with weak higher-order signals. The main panels show the multiband light curves and the input models. Data 1–4 correspond to the four observing sites. Insets highlight the anomaly regions and the caustic structures.