Difficulty: Easy
Correct Answer: Both statements I and II together are sufficient, but neither alone is sufficient.
Explanation:
Logic
From I: {shi, tu, ke} ↔ {pen, is, blue}.From II: {ke, si, re} ↔ {this, is, wonderful}.Common English word: ‘‘is’’; common code token: ke.
Why both?
Neither I nor II alone pins ‘‘is’’ uniquely; together they do.
Final Answer
Both statements together are sufficient.
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