Complex sentence: An internal reorganization in 1973 caused Lionel to become part of General Mills' Fundimensions group, and a new line of scale-sized freight cars, called "Standard O" was introduced that same year.
Split into simpler sentences: An internal reorganization in 1973 caused Lionel to become part of General Mills' Fundimensions group. A new line of scale-sized freight cars, called "Standard O" was introduced that same year.