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Artificial intelligenceConsider the knowledge-base (KB) for the Blocks World problem from the previous question. Draw the complete AND-OR proof tree showing all the answers to the query ∃w above(w, B).20197mDatabase Management SystemFor relation R(A,B,C,D,E) functional dependencies are given as follows: * A \rightarrow BC * CD \rightarrow E * B \rightarrow D Find candidate keys.20254mDatabase Management SystemFor relation: R(A,B,C); FDs={A \rightarrow B, B \rightarrow A}. Which statement is true? (i) A and B both are candidate keys (ii) Only A is key (iii) Only B is key (iv) Neither A nor B is key20252mDatabase Management SystemFrom the instance of a relation scheme R (A, B, C) | A | B | C | |---|---|---| | 1 | 1 | 1 | | 1 | 1 | 0 | | 2 | 3 | 2 | | 2 | 3 | 2 | we can conclude that: (i) A functionally determines B and B functionally determines C (ii) A functionally determines B and B does not functionally determine C (iii) B does not functionally determine C (iv) A does not functionally determine B and B does not functionally determine C20192m
PreviousDescribe constraint satisfaction problem in detail.NextConsider the knowledge-base (KB) for the Blocks World problem from the previous question. Draw the complete AND-OR proof tree showing all the answers to the query ∃w above(w, B).
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