Luck is a synonym of Chance. Chance is related to Moment. Moment is related to Cue. 
Little is related to Pale. Pale is similar to Light. Light is related to Energy. Energy is related to Electrical. 
Luck <--Synonym--> Chance <--RelatedTo--> Moment <--RelatedTo--> Cue 
Little <--RelatedTo--> Pale <--SimilarTo--> Light <--RelatedTo--> Energy <--RelatedTo--> Electrical 