Complex sentence: The celebration of Sukkot is characterized by the use of the "sukkah" (booth or tabernacle) and the Four Species, or "lulav" (branches of the palm, myrtle and willow trees) and "etrog" (fruit of the citron).
Split into simpler sentences: The celebration of Sukkot is characterized by the use of the "sukkah" (booth or tabernacle) and the Four Species. These are known as the "lulav" (branches of the palm, myrtle and willow trees) and "etrog" (fruit of the citron).