No mystery here... it's just a basic pattern. It takes time to learn to read them.. like a new language.
Based on what you've written I'd say that all even numbered rows are considered WS rows. On those you just k4, p27, k4. (knit 4, purl 27, knit 4)
Row 11 is an odd numbered row and in this case considered a RS row. Just do as they tell you on those rows. k15 p1 ki p1 k17 - I think the he ki is a typo and means k1. So you'd knit 15, purl 1, knit 1, purl one, knit 17.
It helps if you give us a pattern link and/or name when asking questions, too.