Row 2: k4, (yrn, p3, yo, k4, p1, k4)
Row 4: k4, (yo, p7, yrn, k4, p1, k4)
They're not quite the same, though it is odd that they'd reverse them. Just know that yrn is the same as a YO and that's what you do on both rows. Could be just a typo.
sue- knitting heretic