Unidentified Fruit

At dinner last night, my meal came with a lovely side of mixed fruit. Ingredients: grapes, watermelon, orange, melon, cantaloupe, pineapple, strawberries, and...? Couldn't figure out what the last one was. I didn't eat it, just in case it was grapefruit, although D. says it wasn't. And she would know.

So what was it?

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