At one time multicellular algae were included in Plantae, whereas they are now grouped with unicellular organisms in the Protista.
(multicellular algae; were included; in Plantae; T:At one time) (they; are grouped; with unicellular organisms in the Protista; T:now)
multicellular algae they
were included are grouped
in Plantae T:At one time
with unicellular organisms in the Protista T:now