Task: Text Simplification
Input (English): etymology the first person who used the term " seidenstraße " -lrb- literally " silk road " -rrb- was the german geographer ferdinand von richthofen in 1877.
Output (English): the first person who used the term " seidenstraße " -lrb- literally " silk road " -rrb- was the german geographer ferdinand von richthofen in 1877.