Assertion: sequence's line | /r/AtLocation | the middle
Facets:
Source sentences:
text: These single lines most often appeared at the beginning or end of the sequence, but could also appear in the middle.
text: These single lines most often appeared at the beginning or end of the sequence, but could also appear in the middle.
text: These single lines most often appeared at the beginning or end of the sequence, but could also appear in the middle.