anchor.diff:  2017ApJ...835..168D,k2,astrophysics
   2017ApJ...835..172L,kepler,astrophysics
   2017ApJ...835..173S,kepler,astrophysics
  +2017ApJ...835..180B,unrelated,
   2017ApJ...835..189L,kepler,astrophysics
   2017ApJ...835..239S,kepler,exoplanets
   2017ApJ...835..277H,k2,astrophysics
  
positive.code: 2017arXiv170107073M,unrelated,
  2017arXiv170107150L,kepler,astrophysics
  2017arXiv170107803A,kepler,astrophysics
  2017arXiv170200691B,k2,exoplanets
  2017arXiv170201152B,kepler,astrophysics
  2017arXiv170202943R,k2,astrophysics
  2017arXiv170203311H,kepler,astrophysics
  2017arXiv170204251H,kepler,astrophysics
  2017arXiv170204734D,k2,exoplanets
  2017arXiv170205078M,k2,exoplanets
  2017arXiv170205158S,kepler,exoplanets
  2017arXiv170205488L,k2,exoplanets
  
negative.code: 2017MNRAS.tmp..145R,k2,astrophysics
  2017MNRAS.tmp..162K,k2,astrophysics
  2017MNRAS.tmp..186H,kepler,exoplanets
  2017MNRAS.tmp..251H,unrelated,
  2017NatAs...1E..10I,unrelated,
  2017NatAs...1E..13L,unrelated,
  2017NewA...52...65M,unrelated,
  2017NewA...52...96C,kepler,astrophysics
  2017PASA...34....2N,kepler,exoplanets
  2017PASJ...69...15S,kepler,astrophysics
  2017PASP..129c4002B,unrelated,
  2017PhRvD..95b3507M,kepler,astrophysics
  2017RAA....17....5W,kepler,astrophysics
  2017arXiv170100493D,unrelated,
  2017arXiv170100586D,k2,exoplanets
  2017arXiv170100588M,k2,exoplanets
  2017arXiv170100937D,kepler,astrophysics
  