sentence 1 should be revised because it shows bias
Bias is the proclivity to prefer one person or thing over another and to favor that person or thing. Bias against women pervades all levels of the legal system. The BBC has come under fire for alleged political bias. Prejudice, leaning, bent, and tendency are synonyms. More Bias Synonyms
Bias is an inclination toward (or away from) one way of thinking, which is often influenced by your upbringing. For example, O.J. Simpson was acquitted of murder in one of the most high-profile trials of the twentieth century. Many people still hold grudges against him, treating him as if he were a convicted murderer.
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