- - Oppo research hoard
- - Opposition research goal
- - oppo research for a political debate, say
- - oppo research collection, figuratively
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- - Oinker originally developed for medical research and now used for how adorable an animal can be research
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- - Attend without king right opposite second hoards
- - Without question, sir lures wild animals
- - Rocky's kin
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- - campaign message often based on oppo research
- - Smear campaign tactic
- - Aggressive campaign TV spot
- - Smear campaign commercial
- - Part of a smear campaign
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- - Succeed in oppo research
- - Succeed in oppo research, perhaps
- - Search someone's old tweets, perhaps
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- - Oppo research, e.g
- - Photos from drones, e.g
- - Enemy plans, e.g
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