The term "spring" is referring to any type of sulfur spring, but the subtitle says it’s a "geyser". Would it be correct for the caption to be "Sulfur geyser bursts"?
Context on Crowdin: subtitles.block.potent_sulfur.geyser_eruption
I managed to solve the problem.
The name "geyser" should be applied to the legend because the entire community is using the term "geyser" rather than just "spring". As I explained, the context itself already informs that it is a "geyser" and it would not make sense not to have it in the string.