They have been split because they are considered different enough.
Prior to the 20th century, women in China were considered essentially different from men.
Historically, acute chest syndrome was considered different from infection (pneumonia).
We feared that she'd be considered different and that someone would pick on her.
In my day, they probably would have been considered different.
It's very strange being assimilated and writing material no longer considered different.
Francis Planté's style is considered very different from modern-day recording artists.
This is considered different from an after-effect, such as an after-image.
Michelle Thompson, another panelist, suggested that "being friendly to those people who are considered different could help."
The first three scores were not considered statistically different from average.