Q16: Complete to return people who authored works with more than 20 citations:
MATCH (p:Person)-[:__[Fill in the blank]
__]-(w:Work)WHERE w.__[Fill in the blank]
__ 20RETURN p.name;

Question

Q16: Complete to return people who authored works with more than 20 citations:
MATCH (p:Person)-[:__[Fill in the blank]
__]->(w:Work)WHERE w.__[Fill in the blank]
__ > 20RETURN p.name;

BlackTom AI · Accepted Answer

MATCH (p:Person)-[:AUTHORED]->(w:Work) WHERE w.citations > 20 RETURN p.name;

1) Relevant knowledge points and concepts
- Cypher pattern matching: (p:Person)-[:REL_LABEL]->(w:Work) matches a Person node p connected by a relationship with label REL_LABEL to a Work node w.
- Relationship label syntax: use [:LABEL] (labels are case-sensitive by convention).
- Directional arrow -> indicates the relationship goes from the Person node to the Work node.
- Property access: node properties are referenced with dot notation (w.citations).
- Comparison operator: > compares numeric property values.

2) Step-by-step reasoning process
- Identify nodes: p with label Person, w with label Work.
- Identify relationship: there must be an outgoing relationship from p to w with the label AUTHORED.
- Apply filter: for each matched Work node w, evaluate w.citations > 20.
- Return result: for every matched p meeting the condition, return p.name.

3) Intermediate steps / example evaluation
- Suppose the graph contains:
  - p1:Person name = "Alice"
  - p2:Person name = "Bob"
  - w1:Work citations = 30 (AUTHORED by Alice)
  - w2:Work citations = 10 (AUTHORED by Bob)
- Step A: MATCH finds (Alice)-[:AUTHORED]->(w1) and (Bob)-[:AUTHORED]->(w2).
- Step B: Evaluate WHERE: w1.citations (30) > 20 is true; w2.citations (10) > 20 is false.
- Step C: RETURN p.name yields "Alice" only.

4) Why the correct answer is correct
- AUTHORED is the relationship label that expresses the author-work connection in the schema; the pattern (p)-[:AUTHORED]->(w) correctly matches authorship edges from Person to Work.
- citations is the property name on Work nodes holding the numeric citation count; w.citations > 20 correctly filters works with more than 20 citations.

5) Why other plausible options are incorrect
- Using a different relationship label (e.g., AUTHORED_BY, WROTE) would only work if the database uses that exact label; the expected schema here uses AUTHORED.
- Using a different property name (e.g., citation_count, numCitations) would fail unless those exact property keys exist. The correct property key in the schema is citations.
- Reversing the arrow (<-[:AUTHORED]-) would require the relationship to be defined in the opposite direction and would not match the conventional Person -> Work ownership.

6) Conclusion / confirmation
The correct fills are AUTHORED for the relationship label and citations for the Work property. Final query: MATCH (p:Person)-[:AUTHORED]->(w:Work) WHERE w.citations > 20 RETURN p.name; This matches and confirms the provided answer.

Q16: Complete to return people who authored works with more than 20 citations: MATCH (p:Person)-[:[Fill in the blank] ]->(w:Work)WHERE w.[Fill in the blank] > 20RETURN p.name; 多项填空题

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Q16: Complete to return people who authored works with more than 20 citations: MATCH (p:Person)-[:__[Fill in the blank] __]->(w:Work)WHERE w.__[Fill in the blank] __ > 20RETURN p.name; 多项填空题