premise: As early as 1 1/2 to 2 years , children begin to talk about the past , guided by adults who prompt them and expand on their fragmented recollections and true is true and true is true and true is true and true is true and true is true .
hypothesis: As young as 1 1/2 to 2 years , children will begin to talk about their past when they are guided by adults who will prompt them .