Premise is similar to Conclusion. Conclusion is a synonym of End. End is related to Bit. Bit is related to Glad. 
Observation is derived from Observer. Observer is related to Witness. Witness is related to Testimony. 
Premise <--SimilarTo--> Conclusion <--Synonym--> End <--RelatedTo--> Bit <--RelatedTo--> Glad 
Observation --DerivedFrom--> Observer <--RelatedTo--> Witness <--RelatedTo--> Testimony 