source: [tag=MD] [lemma=only] [lemma=increase] [lemma=our] [□=□]
destination: [tag=MD] [lemma=only] [lemma=increase] [lemma=our] [tag=□]
spec: The semantics of a read ( ) call , say , should be the same regardless of where the data is being read from . Further understanding of the nature of sunrise and sunset colors can only increase our appreciation of them .