<s>
In	O
a	O
construction	B-Application
puzzle	I-Application
you	O
have	O
to	O
build	O
(	O
assemble	O
)	O
a	O
technical	O
contraption	O
.	O
</s>
<s>
In	O
a	O
wider	O
sense	O
a	O
construction	B-Application
puzzle	I-Application
is	O
any	O
puzzle	O
where	O
you	O
have	O
to	O
assemble	O
a	O
given	O
set	O
of	O
pieces	O
in	O
a	O
certain	O
way	O
.	O
</s>
<s>
Examples	O
for	O
these	O
types	O
of	O
construction	B-Application
puzzles	I-Application
are	O
the	O
stick	O
puzzles	O
,	O
many	O
tiling	O
puzzles	O
and	O
also	O
some	O
mechanical	O
puzzles	O
.	O
</s>
<s>
some	O
mechanical	O
puzzles	O
are	O
construction	B-Application
puzzles	I-Application
.	O
</s>
<s>
some	O
packing	O
problems	O
can	O
be	O
seen	O
as	O
construction	B-Application
puzzles	I-Application
.	O
</s>
<s>
stick	O
puzzles	O
is	O
a	O
sub-type	O
of	O
construction	B-Application
puzzles	I-Application
.	O
</s>
<s>
some	O
tiling	O
puzzles	O
can	O
be	O
seen	O
as	O
construction	B-Application
puzzles	I-Application
.	O
</s>
