You mean like compound words?
This sentence is the longest sentence, long to the point that a normal English teacher would step in and be a troll and put periods in almost unnecessary places.
Next challenge - Make this sentence more concise so that it has no more than 14 words in it. It must still communicate all the relevant information:
Bothered by allergies, a condition that made them sneeze, some of the preschool children had sinus troubles that caused them to miss several days in nursery school this spring.