 Another strategy of expanding the scope of interpretation was to turn a hexagram into a different one by transposing some of its lines. Known as “changing the positions of hexagram lines” (yiwei), this strategy allowed Han scholars to introduce other hexagrams when having problems interpreting a hexagram. For instance, Tai ䷊ (Peace, #11) can become Jiji ䷾ (Ferrying Complete #63) by transposing its second line (a yang) and its fifth line (a yin). Likewise, Dazhuang ䷡ (Great Strength, #34) can turn into Xu ䷄ (Waiting, #5) by switching its fourth line (a yang) and its fifth line (a yin). Much more versatile than other methods, the transposition of hexagram lines gave Han commentators the liberty to inject a broad range of alternatives when interpreting a hexagram.