query: وفي الاخر، بدلوا العجالي اللوح بعجالي حديد. في عام 1767، استعملوا أول بارات حديد كاملة.
positive: Eventually, wooden wheels were replaced by iron wheels. In 1767, the first full-iron rails were introduced.
negative: Eventually, wooden wheels were not replaced by iron wheels. In 1767, the first full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1759, the eighth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1764, the twelfth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1766, the first full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the eighteenth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the first full-iron rails were not introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the fourteenth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the last empty - iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the last empty-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the seventeenth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the seventh full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1767, the tenth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1768, the nineteenth full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1774, the first full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1774, the second full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1775, the first full-iron rails were introduced. Eventually, wooden wheels were replaced by iron wheels. In 1777, the eleventh full-iron rails were introduced.