Assertion: crick's contribution | /r/HasProperty | an x-ray photograph of b-dna
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Source sentences:
text: The other contribution included an X-ray photograph of B-DNA (called Photo 51) taken by Franklin's student Gosling that was briefly shown to Watson by Wilkins in January 1953, and a report written for an MRC biophysics committee visit to King's in December 1952 which was shown by Perutz at the Cavendish Laboratory to both Crick and Watson.