<s>
The	O
OPPO	B-Application
F7	I-Application
is	O
a	O
phablet	B-Application
smartphone	O
based	O
on	O
Android	B-Application
8.1	I-Application
,	O
which	O
was	O
unveiled	O
on	O
March	O
26	O
,	O
2018	O
.	O
</s>
