Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Q: Sentence: 'XHTML is a modified version of HTML that is fully XML compatible , so that it can be processed by XML parsers .', Argument/Subject 1: 'xhtml', Argument/Subject 2: 'html'

A: be version of
****
Q: Sentence: 'We celebrate Shavuot as the anniversary of the day God gave the Ten Commandments to Moses and the Israelites at Mount Sinai .', Argument/Subject 1: 'god', Argument/Subject 2: 'mose'

A: give to
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Q: Sentence: 'Folks have been abbreviating Christmas as Xmas for a very long time .', Argument/Subject 1: 'christma', Argument/Subject 2: 'xma'

A:
be abbreviate to
****