grammatically converts LAhE to SE; semantically the result tags the x1 of the selbri as being LAhE the supplied x1. Can be converted to other than x1 with SE.
x1 is x2 (li; no default value assumed, but - unless explicitly overridden - assumed to be expressed with significant figures) years old according to standard of measurement x3; colloquial form: x1 is/has x2 (years (of age)).