In Scala, a tuple has the following value:

tup: $($Int$,$ Int, Array$[$Double$],$ Boolean$)=(36950,42116,$Array$(1\mathrm{.}0,$ NaN, $1\mathrm{.}0,1\mathrm{.}0,1\mathrm{.}0,1\mathrm{.}0,1\mathrm{.}0,1\mathrm{.}0,1\mathrm{.}0),$true$)$

What is tup.$\_2?$