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Spelling Varaints in SD-pairs
The spelling variants are handled in two ways in the suffix derivations:
$|noun|ful$|adj generates:
	In this case, we do not include [color|noun|colourful|adj] or [colour|noun|colorful|adj] as valid SD-pairs.
E0330515|monomerisation, has two nominalizations
	monomerisation|noun|monomerise|verb
 	monomerisation|noun|monomerize|verb
	 Similarly, the associated spVar, E0330515|monomerization, also has two nominalizations:
	
monomerization|noun|monomerise|verb
	monomerization|noun|monomerize|verb
	 Accordingly, all four above cases are legit suffixDs because nomD (derived from nominalizations) is a type of suffixD. In this case, 4 SD-rules are used as candidates for evaluation:
sation|noun|se|verb
		ation|noun|e|verb
	zation|noun|ze|verb
		ation|noun|e|verb
	sation|noun|ze|verb
	zation|noun|se|verb