# standard (4,3) erasure code situation

PD
{
  "RV": ["F","S1","S2","S3","S4"],
  "AL": [],
  "O": "H(S1)",
  "D": [
    {"dependent":["S1","S2","S3","S4"],"given":["F"]},
    {"dependent":["F"],"given":["S2","S3","S4"]},
    {"dependent":["F"],"given":["S1","S3","S4"]},
    {"dependent":["F"],"given":["S1","S2","S4"]},
    {"dependent":["F"],"given":["S1","S2","S3"]} ],
  "I": [],
  "BC": [
    "H(S1) - H(S2) = 0",
    "H(S1) - H(S3) = 0",
    "H(S1) - H(S4) = 0",
    "H(S2) - H(S3) = 0",
    "H(S2) - H(S4) = 0",
    "H(S3) - H(S4) = 0",
    "H(F) = 1" ],
  "BP": [],
  "S": []
}

