sentences:  During February 26, RSMC Nadi reported that Tropical Depression 11F had formed, within the Tuamotu Archipelago of islands in French Polynesia.During the next day the system moved eastwards before it was last noted during the next day as it degenerated into a tropical disturbance.During April 20 Tropical Disturbance 16F developed within a monsoon trough, about to the southeast of Apia on the Samoan island