a bad result for trade mark owners?

Portakabin Ltd., which makes and sells mobile buildings, owned by PORTAKABIN Benelux Trade marks for goods in class 6 (metal buildings, spare parts and building materials) and 19 (non-metal buildings, spare parts and building materials). Portakabin BV is a subsidiary and the holder of the license to use this sign. A company that is not related, Primakabin, sell and let new and used mobile buildings, both on its own and made by Portakabin. Using Google AdWords service reference, Primakabin chose the keyword ' portakabin ', ' portacabin ', ' portokabin ' and ' portocabin ', which represents the Portakabin's name and three popular mis-spellings. Originally, the title of Primakabin on the ads, which appear after one of the words entered into the search engine, is ' new and used units '.Later Primakabin changed this to ‘used portakabins’.