Information:  - Vreid is a Norwegian black metal band formed in 2004 after the breakup of Windir following the death of lead singer and founder Valfar. The remaining members along with new guitarist Ese formed Vreid. The band's name is an archaic Norwegian word meaning "Wrath".  - Kraft ( Norwegian for Power ) is the first album by the Norwegian black metal band Vreid .  - Windir ("Primal Warrior" in English) was a black metal band from Sogndal, Norway. The band combined black metal with folk music and mythology. The band was formed in 1994 and released its debut album in 1997. Windir was a project of vocalist and multi-instrumentalist Terje "Valfar" Bakken.    Given the paragraphs above, decide what entity has the relation 'publication date' with '2004'.
The answer to this question is:
kraft