Definition: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Positive Example 1 -
Input: In early work , Rutherford discovered the concept of radioactive half-life, the radioactive element radon, and classified three types of radiations: alpha, beta and gamma radiation .
Output: Rutherford discovered the radioactive half-life, the chemical element radon, and the three parts of radiation which he named Alpha, Beta, and Gamma .

Positive Example 2 -
Input: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Output: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.

Negative Example 1 -
Input: Boryla was not in the 1952 playoffs.
Output: Boryla did not participate in the 1952 playoffs.

Negative Example 2 -
Input: The population in China increased to around 2,000 in 2005.
Output: By 2005, the population decreased to about 2,000.

Now complete the following example -
Input: The atomic radius of a chemical element is a measure of the size of its atoms , usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons .
Output: 


Output: The atomic radius of an element is the distance between the nucleus and the edge of the electron cloud .