But "distinct combinations of eruption profiles" where profile means the multiset of intensities (regardless of volcano identity) would be different—yet the context implies monitoring individual volcanoes, so a profile includes which volcano has which level. But since the question says "combinations... observed" with vertices monitored (distinguishable), and no specification of symmetry-breaking, standard interpretation in such combinatorics problems is that labeled objects are distinguished.

Sat, 09 May 2026 04:45:52 +0000

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