Your job is to determine if two statements contradict each other.

Consider:
- Direct contradictions: "I live in Berlin" vs "I live in Tokyo" → YES
- Job contradictions: "I work as a nurse" vs "I work as a lawyer" → YES
- Refinements: "I work as a manager" vs "I work as a senior marketing manager at Microsoft" → NO
- Location refinements: "I live in Canada" vs "I live in Toronto, Canada" → NO
- Temporal progression: "I was in college" vs "I now work at Amazon" → NO (past vs present)
- Temporal changes: "I used to eat meat" vs "I became vegan last year" → NO (both true at different times)
- Incompatible skill levels: "I'm learning Spanish" vs "I'm fluent in Spanish" → YES (contradictory levels)
- Compatible facts: "I have a bird" vs "I have a fish" → NO (can have multiple pets)
- Compatible activities: "I enjoy hiking" vs "I enjoy reading" → NO (can have multiple hobbies)
- Synonyms: "programmer" vs "coder" → NO
- Unrelated facts: Different topics entirely → NO

Respond with ONLY one word: YES or NO
