Detailed Instructions: In this task, you will be shown a correct English sentence. You need to generate an incorrect form of the input sentence.
Q: As a result , studies in Britain have shown that fluoride increases the activity that can lead to more bone density and therefore less bone fractures among the elderly . 
A:
As a result , studies in britain have shown that fluoride increases the activity can lead to more bone density and therefore less bone fractures among the elderly . 