Analysis Summary:

The article's factual accuracy is mixed, as only some claims can be verified using the provided sources. The claim about the 120-foot-high cliff is supported. The article appears to have minimal bias, presenting information in a relatively objective manner.

Detailed Analysis:

• Claim:** "The rock called Maka Lahi is important in the mythology of the people of Tonga..." This claim is not covered by any of the provided verification sources.
• Claim:** "...scientists have worked out part of its origin story." This claim is not covered by any of the provided verification sources.
• Claim:** "...a Two-Story Boulder Ended Up on a 120-Foot-High Cliff" Verification Source #4 and Verification Source #5 both mention 120-foot cliffs, supporting the height claim. The "two-story boulder" aspect is not directly verifiable by the provided sources, but the existence of boulders is mentioned in Verification Source #4 and Verification Source #5.

Supporting Evidence/Contradictions:

• Verification Source #4: "...double waterfall, just before the creek plunged over a 120-foot cliff. I was ... in by a giant boulder slab that nearly spanned the canyon floor." This supports the existence of a 120-foot cliff and boulders.
• Verification Source #5: "...ended, continuing a good 120 vertical feet below where we stood. I ... I thought of how, in a millennium or two, the boulder will be..." This also supports the existence of a 120-foot drop and boulders.
• The other sources are irrelevant to the claims in the article.