Final answer:
The reference provided does not match the music of Lennon and McCartney, but two songs reflecting their Liverpool roots are 'Penny Lane' and 'Strawberry Fields Forever', both of which are nostalgic reflections on their childhood experiences in Liverpool.
Step-by-step explanation:
The student is inquiring about two songs that John Lennon and Paul McCartney of The Beatles wrote about their roots in Liverpool. Unfortunately, the information provided seems to refer to Leonard Cohen's work and not to the music of Lennon and McCartney.
Therefore, I cannot provide an accurate response based on the given reference. However, to answer the student's question, two songs by Lennon and McCartney that reflect on their Liverpool roots are 'Penny Lane' and 'Strawberry Fields Forever'. 'Penny Lane' describes a street in Liverpool known for its bus terminus, and McCartney's fond memories of the area.
'Strawberry Fields Forever' is inspired by Lennon's memories of playing in the garden of Strawberry Field, a Salvation Army children's home near where he grew up.