Assertion: helicopter's blade | /r/HasProperty | each 35 ft × 35
Facets:
Source sentences:
text: Rotor systems: 7 blades on main rotor (each 35 ft × 35 in), 4 blades on tail rotor
text: 7 blades on main rotor (each 35 ft × 35 in), 4 blades on tail rotor Powerplant: 3 ×