Dear context users:

I'd like to handle a block of text with 2 or more lines where the block width should be equal
to the longest line in the block. I'd like the lines be center aligned in the block.
Something like this:

line1
second longerline
another line

In latex I can do it using parbox like this:

\parbox{\widthof{second longerline}}{\centering{}line1\\second longerline\\another line}

How can achieve the same or similar in context?