Complex sentence: By then ideas had been launched to build a national ski flying hill in Rødkleiva, but this was rejected both by Holmenkollen director Rolf Nyhus and ski jumping director Odd Hammernes, who stated that a new ski flying hill would be too expensive.
Split into simpler sentences: By then ideas had been launched to build a national ski flying hill in Rødkleiva. However, it was rejected both by Holmenkollen director Rolf Nyhus and ski jumping director Odd Hammernes, who stated that a new ski flying hill would be too expensive.