I think e I don't think non vengono mai usati da soli, ma vengono sempre seguiti da so, come nell'esempio, o da una proposizione come nel caso di I think/I don't think he went to the concert.
There are more than 1,300 literary awards in Italy. The most prestigious is the Strega Prize, which was first awarded in 1947. Other major awards are the Viareggio-Rèpaci Prize, the Campiello prize, and the Bautta prize.