person: ns
tense: present
aspect: ns
voice: active
form: full
intransitive (-)
At the same time , moves toward tighter air-quality standards are spurring interest in lighter or alternative fuels that [*T*-1] do n't pollute as much as fuel refined [*] from `` heavy '' crudes , generally high in sulfur .
Arg0:
[*T*-1] -> that -> lighter or alternative fuels
ArgM-NEG:
n't
REL:
pollute
ArgM-ADV:
as much as fuel refined [*] from `` heavy '' crudes , generally high in sulfur