original: the spot was observed at different times with different sizes and shapes .
simplifications: the spot was observed at different times with different sizes and shapes . the spot was watched at different times with different sizes and shapes . the spot was observed with different sizes and shapes at different times . the spot was looked at , at different times , sizes and shapes . the spot was noticed at different times with different sizes and shapes . the spot was seen at different times with different sizes and shapes . the spot was looked at many times with many sizes and shapes . the spot was observed at different times with different sizes and shapes .