Assertion: concertina's button | /r/CapableOf | travel in a 90-degree direction
Facets:
value: to the bellows
type: TRANSITIVE-OBJECT
Source sentences:
text: • The buttons on the Accordion, when pressed, travel in a 90-degree direction to the bellows while the buttons on the Concertina, when pressed, travel in the same direction as the bellows.