They are used to "break the ice." Examples of non-controversial subjects are: Weather [it's so cold today;
(They; to break; the ice) (They; are; it's so cold today) Context(They are,List([0, 76))):(it; 's; so cold; T:today)
They are,List([0, 76))
They They it
to break are 's
the ice
it's so cold today
so cold T:today