Multiple properties stored in a variable

<<set $Woodensword to ["Wooden Sword",10]>>

Like an array, i know i can store more than one piece of information and i know printing this variable will in fact show "Wooden Sword 10". But i was wonder if could specifically call up the number part, like.

<<set $TestE to 25>> <<print $TestE>>
<<set $TestE to $TestE - $Woodensword>>
$TestE

and that would subtract the 10 from 25 but I don't think that is how it works. I toyed with object class variables in java script but I don't quite know how they work either.
Any suggestions would be great.