Flexibility is related to Stretch. Stretch is related to Pull. Pull is the opposite of Shove. Shove is a type of Push. 
you would Hug because Love. Love is related to Extreme. Extreme is a synonym of Strong. 
Flexibility <--RelatedTo--> Stretch <--RelatedTo--> Pull <--Antonym--> Shove --IsA--> Push 
Hug --MotivatedByGoal--> Love <--RelatedTo--> Extreme <--Synonym--> Strong 