Question: How many residents were in the resort town in which Nida Lighthouse was located? 
Sentence (from "Akmenrags Lighthouse"): The lighthouse of Akmenrags is a key navigation point, in one of the most dangerous spots on the Baltic Sea to navigate by - this is due to several factors: the lighthouse is located by a stony sand bank, which extends by a distance of 2 nautical miles (about 3,7 kilometres) to the north-west of the lighthouse; another point of danger is the depth of the sea - which is on average 2 metres in the lighthouse's vicinity.
Relevant evidence: No