Assertion: gerbil | /r/HasProperty | 40 x 60 cm
Facets:
Source sentences:
text: After saying this it then goes on to recommend a surface area of 30 x 60cm (12x24 inches) for two gerbils, 40 x 60 cm (16x24 inches) for 3 gerbils and a surface of 40 x 80 cm (16x32 inches) for 4 gerbils would be required.