Before revision:  For instance , the fact that a visitor will not be able to tell, at a first glance, if the artefact that he/she is looking at is real or not , is an example of True AR adaptation in a museum and it is expected to draw the visitors' interest.
After revision:  It emphasises , the fact that a visitor will not be able to tell, at a first glance, if the artefact that he/she is looking at is real or not , is an example of True AR adaptation in a museum and it is expected to draw the visitors' interest.