An old woman with a gray hat sits on the gravel covered ground in front of large stone blocks knitting a sock .
It is certain that an elderly woman knits a sock to donate to the orphanage behind her
It is impossible that an elderly woman knits a sock to donate to the orphanage behind her
It is certain that an elderly woman knits a sock to donate to the orphanage behind her
An elderly woman knits a sock to donate to the orphanage behind her