With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The X Factor is a singing competition in the UK.
text_B: Zastava Skala -LRB- -LSB- ˈzaːstaʋa ˈskaːla -RSB- -RRB- , also known as Yugo Skala -LRB- -LSB- ˈjuɡo ˈskaːla -RSB- -RRB- , is a generic name for a family of cars built by Serbian manufacturer Zastava Automobili .. Zastava. Zastava Automobili. Zastava Automobili. Zastava Automobili. Based on a Fiat 128 sedan , it was introduced in 1971 and sold as Zastava -LRB- Yugo -RRB- 128 with a restyled rear panel .. Zastava. Zastava Automobili. Fiat 128. Fiat 128. Later it became available as a 3 or 5-door liftback , a style that had not been issued in Italy , under the name Zastava 101 .. Zastava. Zastava Automobili. liftback. liftback. Zastava 101 is widely known by its nickname `` Stojadin '' -LRB- -LSB- stoˈjadin -RSB- , a male name , from the similarity with Serbo-Croatian for 101 , `` sto jedan '' -RRB- and in Slovenia as `` Stoenka '' -LRB- `` The 101 '' -RRB- .. Zastava. Zastava Automobili. Serbo-Croatian. Serbo-Croatian language. In the final years of production , the Zastava Skala was available in a single trim level  : the 55-horsepower , 1.1-liter , 5-door Skala 55 .. Zastava. Zastava Automobili. In 2008 , a new Skala could be purchased for just under 4,000 euros , undercutting the Zastava Koral -LRB- an ameliorated Yugo -RRB- .. Zastava. Zastava Automobili. Zastava Koral. Zastava Koral. Production of the Zastava Skala continued for some time after the discontinuation of the Zastava 128 .. Zastava. Zastava Automobili. The Skala features a fifth door , making it impressively functional at this price level .. Drop the rear seat and cargo space increases from 325 to 1,010 liters .. Due to its practicality and robustness , and thanks in no small part to its low price , the Skala 55 continued to sell well in Serbia until the end of production in 2008 .. Serbia. Serbia. 1,273,532 have been built since 1971 .. Zastava in late 2007 estimated that the Skala 55 was the world 's second most-affordable car at the time .. Zastava. Zastava Automobili
not_related.