One physical or logical line of an address.
Any combination of:
Text, numbers, or special characters
Emphasis Elements
<bold> Bold
<fixed-case> Fixed Case
<italic> Italic
<monospace> Monospace Text (Typewriter Text)
<overline> Overline
<roman> Roman
<sans-serif> Sans Serif
<sc> Small Caps
<strike> Strike Through
<underline> Underline
<ruby> Ruby Annotation Wrapper
Baseline Change Elements
<sub> Subscript
<sup> Superscript
<city> City
<country> Country: in an Address
<fax> Fax Number: in an Address
<institution> Institution Name: in an Address
<institution-wrap> Institution Wrapper
<phone> Phone Number: in an Address
<postal-code> Postal Code
<state> State or Province