Notice is related to Aware. Aware is a synonym of Conscious. Consciousness is derived from Conscious. Consciousness is a synonym of Knowledge. 
Grade is a synonym of Mark. Mark is related to Degree. Degree is related to Condition. Decline is a type of Condition. 
Notice <--RelatedTo--> Aware <--Synonym--> Conscious <--DerivedFrom-- Consciousness <--Synonym--> Knowledge 
Grade <--Synonym--> Mark <--RelatedTo--> Degree <--RelatedTo--> Condition <--IsA-- Decline 