Task: Text Simplification
Input (English): historically , the sensations of itch and pain have not been considered to be independent of each other until recently , where it was found that itch has several features in common with pain , but exhibits notable differences.
Output (English): even though , the feel of itch and pain are said to be dependent on each other historically , a recent research says that itch not only has many aspects in common with pain , but also shows some notable differences.