Question:
Based on the premise "This is post-traumatic journalism--repetitious, impatient, and emotionally raw.", can we conclude that "This is not professional journalism."?
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Answer:
it is not possible to tell

Question:
Based on the premise "As a boy, though, I had often stayed at Styles, his mother's place in Essex. ", can we conclude that "I had stayed at his mother's place often when I was a boy."?
****
Answer:
yes

Question:
Based on the premise "First, they used an evolutionary approach to product development by establishing timephased plans to develop a new product in increments based on technologies and resources achievable now and later.", can we conclude that "New technologies add cost savings and functional benefits to the product."?
****
Answer:
it is not possible to tell