Assertion: rose | /r/MadeOf | the blue pigment delphinidin
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Source sentences:
text: In 2004, researchers used genetic modification to create roses that contain the blue pigment delphinidin.
text: Scientists have yet to produce a truly blue colored rose; however, after thirteen years of collaborative research by an Australian company, Florigene, and a Japanese company, Suntory, a rose containing the blue pigment delphinidin was created in 2004 by genetic engineering of a white rose.