The northeastern Iberian script, also known as Levantine Iberian or simply Iberian, was the primary means of written expression for the Iberian language. It has also been used to write Proto-Basque, as evidenced by the Hand of Irulegi.[1] The Iberian language is also represented by the southeastern Iberian script and the Greco-Iberian alphabet. In understanding the relationship between the northeastern and southeastern Iberian scripts, some [who?] note that they are two distinct scripts with different values assigned to the same signs.[citation needed] However, they share a common origin, and the most widely accepted hypothesis is that the northeastern Iberian script was derived from the southeastern Iberian script. Some researchers have concluded that it is linked solely to the Phoenician alphabet, while others believe that the Greek alphabet also played a role.[citation needed]