Original sentence: " However, reporters attending a public demonstration of Yogic Flying in Washington DC in 1986, where 22 participants sat in a crossed legged "lotus" posture and bounced on mattresses observed only hopping
Edited sentence: " However, reporters attending a public demonstration of Yogic Flying in Washington DC in 1986, where 22 participants sat in a crossed legged "lotus" posture and bounced on mattresses, were not convinced