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.

in popular music , a side project is a project undertaken by one or more persons already known for their involvement in another band.
in popular music , a side project is made by one or more persons already known for being in another band.

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 , 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.

offenbach 's numerous operettas , such as orpheus in the underworld , and la belle hélène , were extremely popular in both france and the english-speaking world during the 1850s and 1860s.

offenbach 's operettas , such as orpheus in the underworld and la belle hélène , were very popular in france and the english-speaking world during the 1850 's and 1860 's.

