return html
try:
relationString = str(form['relation'].value).replace(" ", "").replace(
"\n", "").replace("\r", "")
relation = set(relationString) | set(EMPTY_SET)
fdsString = re.sub("(\r\n)*", "", str(form['fds'].value), 1)
fds, mvds = DBnormalizer.parseInputFDsMVDs(fdsString)
additionalFds = []
additionalMvds = []
step = str(form['step'].value).replace(" ",
"").replace("\n",
"").replace("\r", "")
candidatekeys = DBnormalizer.getKeys(relation, fds)
noRightSideAttributes = relation - DBnormalizer.getRightSideAttributes(fds)
alert = ""
info = ""
inputpanel = views.inputToString(relation, fds, mvds, additionalFds,
additionalMvds, "default")
quizform = ""
try:
numberOfTries = int(form['numberOfTries'].value)
numberOfSteps = int(form['numberOfSteps'].value)
except KeyError:
numberOfTries = 0
numberOfSteps = 0
numberOfTries = numberOfTries + 1
if (step == '1'):
#candidate keys
