This sentence must be green.

This sentence must be preceded by a "6".

This sentence must be preceded by a "6" or a "0". "6" indicates ASCII case-insensitive counter names.

This sentence must be preceded by a "6" or a "0". "6" indicates Latin-1 case-insensitive counter names.

This sentence must be preceded by a "6" or a "0". "6" indicates Unicode-insensitive counter names.

This sentence must be green. Green text here indicates ASCII case-insensitive namespace prefixes. Green text here indicates Latin-1 case-insensitive namespace prefixes. Green text here indicates Unicode case-insensitive namespace prefixes.