Assertion: wagtail's upperpart | /r/HasProperty | black
Facets:
Source sentences:
text: It has black upperparts, head and breast, with a white supercilium and large white wingbar.
text: It has black upperparts, head and breast, with a white supercilium and large white wingbar.
text: It has black upperparts, head and breast, with a white supercilium and large white wingbar.