Complex sentence: The song is primarily a social commentary of the UK's council housing system in the 1970s, an evident theme throughout Genesis' early work, especially in their following album, "Selling England by the Pound".
Split into simpler sentences: The song is primarily a social criticism of the UK's council housing system in the 1970s. Social commentary was an evident theme throughout Genesis's early work, especially in their following album, "Selling England by the Pound".