Work is related to Plan. Plan is related to Decision. Decision is a synonym of Conclusion. Conclusion is related to Answer. 
Excellent is a synonym of Crucial. Crucial is a synonym of Essential. Essential is related to Necessary. 
Work <--RelatedTo--> Plan <--RelatedTo--> Decision <--Synonym--> Conclusion <--RelatedTo--> Answer 
Excellent <--Synonym--> Crucial <--Synonym--> Essential <--RelatedTo--> Necessary 