<s>
Amazon	B-Application
Polly	I-Application
is	O
a	O
cloud	O
service	O
by	O
Amazon	B-Application
Web	I-Application
Services	I-Application
,	O
a	O
subsidiary	O
of	O
Amazon.com,	O
that	O
converts	O
text	O
into	O
spoken	O
audio	O
.	O
</s>
<s>
It	O
was	O
launched	O
in	O
November	O
2016	O
and	O
now	O
includes	O
60	O
voices	O
across	O
29	O
languages	O
,	O
some	O
of	O
which	O
are	O
Neural	O
Text-to-Speech	B-Application
voices	O
of	O
higher	O
quality	O
.	O
</s>
<s>
Users	O
include	O
Duolingo	B-Application
,	O
a	O
language	O
education	O
platform	O
.	O
</s>
