Oil and gas formed from ancient sea plants and animals that died and fell the sea bed where they were buried and heated;
(Oil and gas; formed; from ancient sea plants and animals) (ancient sea plants and animals; died; ) (the sea bed; were buried; they) (they; heated; L:the sea bed)
Oil and gas ancient sea plants and animals the sea bed they
formed died were buried heated
from ancient sea plants and animals
they
L:the sea bed