Classifier Instance:

Anchor text: yew
Target Entity: Taxus_baccata
Preceding Context: The preferred material to make the longbow was yew, although ash, elm and other woods were also used. Giraldus Cambrensis, Gerald of Wales, speaking of the bows used by the Welsh men of Gwent, says: "They are made neither of horn, ash nor yew, but of elm; ugly unfinished-looking weapons, but astonishingly stiff, large and strong, and equally capable of use for long or short shooting." The traditional construction of a longbow consists of drying the
Succeeding Context: wood for 1 to 2 years, then slowly working the wood into shape, with the entire process taking up to four years. (This can be done far more quickly by working the wood down when wet, as a thinner piece of wood will dry much faster.) The bow stave is shaped into a D-section. The outer "back" of sapwood, approximately flat, follows the natural growth rings; modern bowyers often thin the sapwood, while in the Mary Rose bows the back of the bow was the natural surface of the wood, only the bark being removed. The inner side ("belly") of the bow stave consists of rounded heartwood. The heartwood resists compression and the outer sapwood performs better in tension. This combination in a single piece of wood (a self bow) forms a natural "laminate", somewhat similar in effect to the construction of a composite bow. Longbows will last a long time if protected with a water-resistant coating, traditionally of "wax, resin and fine tallow".
Paragraph Title: Construction and materials
Source Page: English longbow

Ground Truth Types:

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