Personally, I believe that the first description could be interpreted as both calendar-based (about two years) as well as state-contingent (2 percent) guidances.
However, in this case, the time horizon of “about two years” should be interpreted with some flexibility rather than as a rigid “two years.” The second description is related to a conditional commitment, because the continuation of QQE is subject to the examination of upside and downside risk factors.