Complex sentence: The first moment of the attainment is termed the path of stream-entry ("sotapatti-magga "), which would cut off the first three fetters and the person who experiences it is a stream-winner ("sotapanna").
Split into simpler sentences: The first moment of the attainment is termed the path of stream-entry ("sotapatti-magga "), which cuts off the first three fetters. The person who experiences it is called a stream-winner ("sotapanna").