Original sentence: Examples of left-wing extremist groups include 60's militant groups such as the Weathermen or the Black Panthers as well as Communist revolutionary groups such as the Shining Path or Khmer Rouge.Left-wing extremism is a form of Extremism associated with the far left of left wing politics.Many of the Latin American terrorist/revolutionary groups are considered to be left-wing.The political ideologies of left-wing extremists tend to range between Anarchism and Socialism, with a some believing in either Marxism or Communism
Edited sentence: Examples of left-wing extremist groups include 60's militia groups such as the Weathermen or the Black Panthers as well as Communist revolutionary groups such as the Shining Path or Khmer Rouge.Left-wing extremism is a form of political extremism associated with the far left of left wing politics.Like any extremism, left-wing extremism is an objective category (given a clear definition of "left", and a specified left boundary beyond which nobody can go), which includes but is not limited to those who will use violence to accomplish their goals.Many of the Latin American terrorist/revolutionary groups (depending on your point of view) are considered to be left-wing.The political ideologies of left-wing extremists tend to range between Anarchism and Socialism, with a majority believing in either Communism or Marxism