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Answer: Context: Phenazine is an organic compound with the formula (CH)N. It is a dibenzo annulated pyrazine, and the parent substance of many dyestuffs, such as the toluylene red, indulines, and safranines (and the closely related eurhodines). Phenazine crystallizes in yellow needles, which are only sparingly soluble in alcohol. Sulfuric acid dissolves it, forming a deep-red solution.

Hypothesis: The yellow needles that phenazine crystallizes are in are very long

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Answer: Context: Buddleja whiteana is a hybrid of "Buddleja alternifolia" and "Buddleja asiatica" made at the Blandy Experimental Farm, Boyce, VA, USA, in 1948 by R.J.Moore. The plant was named for Orlando E. White, Director of Botany at Blandy. However, the taxonomy of the plant is a matter of contention, the RBG Kew "Plantlist" treating the status of its name as 'unresolved'.

Hypothesis: The plant named for Orlando E. White is controversial.

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Answer: Context: Katie Liu Leung (born 8 August 1987) is a Scottish film, television, and stage actress. She played Cho Chang, the first love interest for lead character Harry Potter in the Harry Potter film series. In 2012, Leung made her stage debut in the play "Wild Swans". Leung has an interest in painting and photography and studied art and design at the University of the Arts, London.

Hypothesis: Katie Liu studied art and design before she tried out for the parts in Wild Swans and Harry Potter. Her choice of study was due to her love of photography more than her love of painting.

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Answer:
Context: Brofiscin Quarry, Groes Faen is a disused limestone quarry in Groes-faen, near Llantrisant in South Wales. It has been designated a Site of Special Scientific Interest due to the exposed Early Carboniferous geological formations on the site. It was used for about seven years for dumping of toxic waste including PCBs and was capped in 2011.

Hypothesis: Boriscin Quarry, before being capped, was responsible for employing over 35% of the population of South Wales.