Assertion: amphetamine | /r/CapableOf | improve performance
Facets:
value: noticeably
type: MANNER
Source sentences:
text: Instead of making them even more jittery, as might be expected, the amphetamines calm many of these children and noticeably improve their concentration and performance," commented the authors of the article.
text: Amphetamines are illegal when they are used without a prescription to get high or improve performance.