Basic Q: Relative Highs & Relative Lows

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I've been learning about the basics of charting, and have come across the concept of spotting upward and downward trends using relative lows and relative highs.

What I am wondering however, is how do you know where to place RLs and RHs?

See attachment for what I mean. (Why could a RL not be placed where I have pointed? If there was a RL there, the uptrend pattern would have been broken earlier, no?)