21.  It is also the most controversial one.

22.  It is very rare for a clergyman, even a controversial one such as Nouri, to be physically assaulted in Iran.

23.  The choice of Mexico City was a controversial one, particularly among track and field circles in Britain, because of the high altitude and pollution.

24.  The issue of extraditing Dominican citizens to the United States to stand trial has been a controversial one in this Caribbean nation.

25.  The most controversial one is the so-called social clause.

26.  Warning them that most people will not talk to someone with a rude handle is usually enough to make them adopt a less controversial one.

27.  The subject was a controversial one in Williamsburg as some nations rejected the idea of involving the military in such operations.

28.  Saracens added the first try of the afternoon, although it was a controversial one.