Compare feet and beaks to learn how they help birds eat and travel.
(birds; travel; ) (feet and beaks; to learn; how they help birds eat and travel) Context(feet and beaks to learn,List([8, 31))):(they; help; birds eat and travel) Context(feet and beaks to learn they help,List([8, 45))):(birds; eat; )
feet and beaks to learn,List([8, 31)) feet and beaks to learn they help,List([8, 45))
birds feet and beaks they birds
travel to learn help eat
how they help birds eat and travel
birds eat and travel