Definition: 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.
Input: The Fert group first saw the large effect in multilayers that led to its naming, and first correctly explained the underlying physics.

The Fert group first saw the large effect in multilayers that led to its naming. They first correctly explained the underlying physics.