<s>
In	O
software	B-General_Concept
engineering	I-General_Concept
,	O
concurrency	B-Operating_System
patterns	I-Operating_System
are	O
those	O
types	O
of	O
design	O
patterns	O
that	O
deal	O
with	O
the	O
multi-threaded	B-Operating_System
programming	I-Operating_System
paradigm	O
.	O
</s>
