Task: Text Simplification
Input (English): however , unlike the moon , it has a large iron core , which generates a magnetic field about 1 % as strong as that of the earth.
Output (English): still , unlike the moon , it has a large iron core , which creates a magnetic field -lrb- a region around a magnetic material or a moving electric charge within which the force of magnetism acts -rrb- about 1 % as strong as that of the earth.