Identify which instrument is string or woodwind: Gravikord, Heckelphone
Heckelphone is woodwind, Gravikord is string.
<START_INST>Identify which instrument is string or woodwind: Gravikord, Heckelphone<END_INST><START_CTX><END_CTX><START_A>Heckelphone is woodwind, Gravikord is string.<END_A>