Complex sentence: In the final scoring round, the player with the most of a given currency type takes the tile of that currency type and may add it to their Alhambra before scoring, and the player with the longest wall segment scores one point for each segment.
Split into simpler sentences: In the final scoring round, the player with the most of a given currency type takes the tile of that currency type and may add it to their Alhambra before scoring. In each scoring round, the player with the longest wall segment scores one point for each segment.