1.   Brian Hawk looked around the crowded confines of the Astrodome and shook his head in amazement.

2.   But installing ice storage in the crowded confines of Manhattan is quite a different matter.

3.   Its crowded confines are home to dozens of holy sites, many of them focal points for the larger tensions that tear at Israel and the Palestinian lands.

4.   With crowded confines and frequent lane changes, the sport resembles roller derby.