Instructions: In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.
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.
Output:
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.