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: Diagnosis is made by seeing these symptoms, having a history of exposure is also helpful but not always found as kennel cough is easily spread through contact with contaminated surfaces such as the ground, toys, sidewalks, dog parks.

Diagnosis is made by seeing these symptoms. Exposure is also helpful but not always found. Kennel cough is easily spread through contact with contaminated surfaces such as the ground, toys, sidewalks, dog parks.