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real speedup (differences are about 5% either way) and the only gain
is in readability.

Profiling
=========

using ```
perl -d:NYTProf profile_long.pl
nytprofhtml --open
```
to examine the time that a program spends starting up, it looks like there's no
speed up to be found in importing a smaller tag.  It spends about 4ms whether
it's looking up ```:long``` or ```:planetary```.