gistfile1.py

import json

j = open("Jenett2012.json", "r")
jj = json.loads(j.read())
out = open("VFB2FBbt.tsv", "w+")
out.write("VFBid\tFBtp\n")
for k, v in jj.items():
    for t in v['Types']:
        if t['isAnonymous'] and t['relId'] == 'RO_0002292':
            out.write(k + "\t" + t['objectId'] + "\n")

out.close()
j.close()