sentences:  Seals also provide the Netsilik with fat for their "kudlik" (soapstone lamps), which both lit and heated the igloos.This made the Netsilik, and most other Inuit, one of the few peoples to hunt for their heating fuel, rather than use wood.By 1923, the Netsilik were in possession of firearms, and iron and steel had also begun to replace flint and bone for arrowheads, harpoons, needles, knives and other tools.