---------
	|	|
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       		|
		|
        	|
		|
________________|


-----------



=====
	---------
	|	|
	|	|
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       		|
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        	|
		|
________________|


--ss-ss----

s

=====
	---------
	|	|
	|	|
	o	|
       		|
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        	|
		|
________________|


--ss-ss----

s t

=====
	---------
	|	|
	|	|
	o	|
       	|	|
	|	|
        	|
		|
________________|


--ss-ss----

s t l

=====
	---------
	|	|
	|	|
	o	|
       	|	|
	|	|
        	|
		|
________________|


m-ss-ss----

s t l m

=====
	---------
	|	|
	|	|
	o	|
       \|	|
	|	|
        	|
		|
________________|


m-ss-ss----

s t l m e

=====
	---------
	|	|
	|	|
	o	|
       \|/	|
	|	|
        	|
		|
________________|


m-ss-ss----

s t l m e n

=====
	---------
	|	|
	|	|
	o	|
       \|/	|
	|	|
       /	|
		|
________________|


m-ss-ss----

s t l m e n o

=====
	---------
	|	|
	|	|
	o	|
       \|/	|
	|	|
       /	|
		|
________________|


mississi--i

s t l m e n o i

=====
	---------
	|	|
	|	|
	o	|
       \|/	|
	|	|
       / \	|
		|
________________|


mississippi

s t l m e n o i b