anchor.diff:  2017ApJ...835L...6H,kepler,exoplanets
   2017ApJ...836....3G,kepler,astrophysics
   2017ApJ...836...41C,k2,astrophysics
  +2017ApJ...836..143H,unrelated,
   2017ApJ...836..167D,k2,exoplanets
   2017ApJ...836L...9P,unrelated,
   2017ApJ...836L..19A,kepler,astrophysics
  
positive.code: 2017A&A...597A..95B,k2,astrophysics
  2017A&A...597A.101F,unrelated,
  2017A&A...597A.113H,kepler,exoplanets
  2017A&A...598A..21B,kepler,astrophysics
  2017A&A...598A..74P,kepler,astrophysics
  2017A&A...598A..77K,kepler,astrophysics
  2017A&A...598A.100J,kepler,astrophysics
  
negative.code: 2017arXiv170107073M,unrelated,
  2017arXiv170107150L,kepler,astrophysics
  2017arXiv170107803A,kepler,astrophysics
  2017arXiv170107841S,kepler,astrophysics
  2017arXiv170108746M,kepler,astrophysics
  2017arXiv170108987V,kepler,astrophysics
  2017arXiv170200013P,k2,exoplanets
  2017arXiv170200416M,unrelated,
  2017arXiv170200691B,k2,exoplanets
  2017arXiv170201152B,kepler,astrophysics
  2017arXiv170201826L,k2,exoplanets
  2017arXiv170202059L,kepler,exoplanets
  2017arXiv170202570B,kepler,astrophysics
  2017arXiv170202943R,k2,astrophysics
  2017arXiv170203136E,unrelated,
  2017arXiv170203311H,kepler,astrophysics
  2017arXiv170204251H,kepler,astrophysics
  2017arXiv170204734D,k2,exoplanets
  2017arXiv170205078M,k2,exoplanets
  2017arXiv170205158S,kepler,exoplanets
  2017arXiv170205483H,k2,exoplanets
  2017arXiv170205488L,k2,exoplanets
  