how is it related to oak?
In winemaking, the barrels are made of oak which will have a strong impact on the resulting wine.
Cabernet Sauvignon
 In winemaking, the decision for the degree of oak influence (as well as which type of oak) will have a strong impact on the resulting wine. American oak, particularly from new barrels, imparts stronger oak flavors that are less subtle than those imparted by French oak
where do the best cabernet sauvignons come from UNANSWERABLE what is it? It is one of the world's most widely recognized red wine grape varieties. where are they found? It is grown in nearly every major wine producing country among a diverse spectrum of climates from Canada's Okanagan Valley to Lebanon's Beqaa Valley. can you name some towns found in this valley? Zahlé,  Anjar,  Arab are there any landmarks here? The ancient Roman ruins of Baalbek, an ancient city named for the Canaanite god Baal. The Romans renamed Baalbek "Heliopolis" and built an impressive temple complex, including temples to Bacchus, Jupiter, Venus, and the Sun. do illicit things take place in this valley? Yes,  Drugs have a long tradition in the Beqaa Valley. do these cabernet also come in a different colour? UNANSWERABLE
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Cabernet Sauvignon [SEP] Affinity for oak
Larger barrels have a smaller wood-to-wine ratio and therefore less pronounced oak flavors. Winemakers in Italy and Portugal sometimes use barrels made from other wood types such as chestnut and redwood. Another method that winemakers consider is "tea bagging" with oak chips or adding oak planks to the wines while fermenting or aging it in stainless steel tanks. While these methods are less costly than oak barrels, they create more pronounced oak flavors, which tend not to mellow or integrate with the rest of the wine's components; nor do they provide the gradual oxidation benefit of barrel aging.