Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.

Example Input: It was discovered by Scott S. Sheppard, et al.
Example Output: It was found by Scott S. Sheppard, et al.

Example Input: This includes all natural and human accidents and errors and is calculated over roughly 160,000 Shinkansen trips completed.
Example Output: All sorts of accidents are counted over all train trips taken.

Example Input: The winter solstice occurs at the instant when the Sun's position in the sky is at its greatest angular distance on the other side of the equatorial plane from the observer's hemisphere.
Example Output:
When the sun is furtherst from the oberver the winter solstic is occuring.