Assertion: olm's skin | /r/HasProperty | exposed to light
Facets:
Source sentences:
text: However, its skin retains the ability to produce melanin, and will gradually turn dark when exposed to light; in some cases the larvae are also colored.
text: However, it gets tanned when the skin is exposed to light.
text: However, it gets tanned when the skin is exposed to light.
text: When exposed to light, the skin turns dark violet to black.