Assertion: ecstasy's mdma | /r/SimilarTo | other amphetamines
Facets:
value: chemically
type: MANNER
Source sentences:
text: MDMA is chemically similar to other amphetamines, but one main difference is that it contains the methylenedioxy group (-O-CH2-O-), making part of the molecule also similar in structure to the hallucinogen, mescaline.