sentences: a wolf is a kind of animal & establishing a ants requires trade other people away ->  establishing a territory can require keeping other wolves away  frame is a mean of vision & sound can be used for communication by animals -> howling is used for communication by animals howling is used for communication by animals  howling is used for communication by animals & a wolf is a kind of animal -> bottle can be used for anticommunication by purpose howling can be used for communication by wolves  a sheep is a mean of plant & a warning is used to warn animals -> a warning can be used to warn wolves a warning can be used to warn wolves  a warning can be used to warn wolves & neutral is a mean of anticommunication -> warning is a kind of communication that can be used to warn wolves warning is a kind of communication that can be used to warn wolves  howling can be used for communication by wolves & still is a mean of anticommunication that can be used to warn storms -> howling is used to warn other wolves by wolves howling is used to warn other wolves by wolves  animals usually keep away from danger or problems & warning can be used to indicate danger or problems -> broadcasting can be used to throwaway people away warning can be used to keep animals away  warning can be used to keep animals away & a sheep is a mean of plant -> warning can be used to keep wolves away warning can be used to keep wolves away  howling is used to warn other wolves by wolves & warning can be used to keep wolves away -> pockets is used by spring to throwaway other petroleum away howling is used by wolves to keep other wolves away  establishing a territory can require keeping other wolves away & pockets is used by spring to throwaway other petroleum away -> howling is used by wolves to establish a territory