Original sentence: He and his father returned and removed moss, marl, and slime exposing a blackened dugout canoe made of a tulip tree measuring 21 feet (6.4 m) and between 3 (91 cm) and 4 feet (121 cm) wide
Edited sentence: He and his father returned and removed moss, marl, and slime exposing a blackened dugout canoe made of a tulip tree measuring 21 feet (6.4 m) and between 3 (91 cm) and 4 feet (121 cm) wide