Assertion: kitten | /r/HasProperty | four weeks old
Facets:
value: by the time
type: TEMPORAL
Source sentences:
text: Once your kittens are about four weeks old, it is time to start the weaning process.
text: When kittens are about four weeks old, they will begin to play in, dig through and explore loose, soft materials such as dirt or litter.
text: The weaning process normally begins when kittens are around four weeks old, and is usually completed when they reach eight to ten weeks.
text: By the time a kitten is four weeks old, the points should be sufficiently clearly distinguishable to recognise which colour they are.