Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Fortress of Suomenlinna' has mentioned 'Gunpowder' in the following places:

Occurrence Sentence	Text Source
The reasons for Cronstedt's actions remain somewhat unclear; but the hopeless situation, psychological warfare by the Russians, some (possibly) bribed advisors, fear for the lives of a large civilian population, lack of gunpowder, and their physical isolation are some likely causes for the surrender.	WIKI