premise: Completed in 1796, the Pawtucket Canal was originally built as a transportation canal to circumvent the Pawtucket Falls of the Merrimack River in East Chelmsford, Massachusetts. In the early 1820s it became a major component of the Lowell power canal system. with the founding of the textile industry at what became Lowell.
hypothesis: Transportation was more readily conducted after the construction of the Pawtucket Canal.
reason: This is the reason the Pawtucket Canal was built.