The government is taking an active 'role in' improving public schools. [=the government is actively involved in improving public schools]
After her husband left her, she had to take on the dual 'role' of mother and father for her children.
It was a case of 'role reversal': the father stayed home with the children while the mother worked.
(..) Yes, he's the one who convinced me to come find you. He was my travelling companion before Ser Jorah seized that role for himself. Jorah sent my secrets to Varys. For years the Spider oversaw the campaign to find and kill me. He did what he had (..)2015 TvShow: Game of Thrones Title: Hardhome Season: 5 Episode 8