Merge branch 'ywv12' into ywv1.2

pansen

2019-02-20 5bff300cf314e7e61c6db75d634ef6a00add48e6

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aeroplane
bicycle
bird
boat
bottle
bus
car
cat
chair
cow
diningtable
dog
horse
motorbike
person
pottedplant
sheep
sofa
train
tvmonitor