The odd one out

Challenge #1 in the Visual versus Frontal Cortex series. Hosted by Xscream.
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Find something repetitive, with one exception. For example a lot of apples with one pear, orange flowers with just one yellow one in between, or some young people with one old person in their middle.
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...she wants to know how it feels like...
Lucy's Work of Art
Dandelion
One in a billion!
Hearts
Colors n' God
Anticipation
Blind
One on the each side
THE ONE AND ONLY
9 / 10
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