Past is related to Could. Could is related to Cold. Cold is related to Shake. 
Contain is a synonym of Check. Check is related to Determine. Determine is related to Decide. 
Past <--RelatedTo--> Could <--RelatedTo--> Cold <--RelatedTo--> Shake 
Contain <--Synonym--> Check <--RelatedTo--> Determine <--RelatedTo--> Decide 