Assertion: brick's indentation | /r/HasProperty | frog
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: The most logical answer I've heard is the indentation (frog) is there to reduce the amount of clay in the making of the brick,(whilst still maintaining the strength of the brick).Therefore
text: Alternatively they may have an indentation on one surface (or two surfaces) commonly called a ‘frog’.