leap year subgroup of year, 14 assertions
CapableOf 5
start on sunday 0.42
call embolismic month 0.28
occur in 19 0.25
start on monday of the … 0.25
end on next day of the … 0.25
HasA 5
366 days 0.68
one additional day 0.49
385 days 0.40
13 months 0.34
two adjoining dominical… 0.25
HasProperty 1
divisible 0.70
IsA 1
year 0.66
ReceivesAction 2
added 0.30
skipped 0.30