java.text.breakIterator.getSentenceInstance incorrectly returns the
first sentence. It appears to have a problem with sentences of the
following form:

string1, string2.

For example:

BEGIN INPUT
 Constructs a randomly generated BigInteger, uniformly distributed over
 the range <tt>0</tt> to <tt>(2^numBits - 1)</tt>, inclusive.
 The uniformity of the distribution assumes that a fair source of random
 bits is provided in <tt>rnd</tt>. Note that this constructor always
 constructs a non-negative BigInteger.

BEGIN OUTPUT
 Constructs a randomly generated BigInteger, uniformly distributed over
 the range <tt>0</tt> to <tt>(2^numBits - 1)