We first learned one way to estimate the height of a tree, given a log cut from the tree and the radii of the log's two ends.
(We; learned; one way to estimate the height of a tree,; T:first) (a tree; given; a log cut from the tree and the radii of the log's two ends) (a log; cut; from the tree and the radii of the log's two ends)
We a tree a log
learned given cut
one way to estimate the height of a tree, T:first
a log cut from the tree and the radii of the log's two ends
from the tree and the radii of the log's two ends