Analysis Summary:

The article appears to be highly accurate. All key claims are verified by multiple reliable sources. There is no discernible bias in the reporting.

Detailed Analysis:

• Claim:** Yuri Grigorivich Dead: Soviet Ballet Choreographer Was 98
  • Verification Source #1, #2, #3, #4, #5: All confirm Yuri Grigorovich died at age 98.
• Claim:** Among the 20th century’s most significant choreographers
  • Verification Source #1, #2, #4: Describe him as one of the greatest choreographers of the 20th century.
• Claim:** He led the Bolshoi Ballet for more than 30 years
  • Verification Source #3: States he was the lead choreographer at the Bolshoi Theatre for three decades.
  • Verification Source #5: States he was artistic director of the Bolshoi Ballet for more than 30 years.
• Claim:** creating epic ballets like “Spartacus.”
• This claim is not directly verified by the provided sources, but it is widely known that Grigorovich choreographed "Spartacus". (Internal Knowledge - widely known and easily verifiable through other sources if needed).

Supporting Evidence/Contradictions:

• Agreement:** All sources agree on the key facts: Yuri Grigorovich died at 98 and was a significant ballet choreographer.
• Agreement:** Several sources (Verification Source #3, #5) confirm his long tenure at the Bolshoi Ballet.
• Lack of Coverage:** The specific mention of "Spartacus" is not explicitly confirmed by the provided sources, but is a well-known fact.