I read this book while vacationing in the High Sierras, surrounded by blue sky, clean air, and lots of tall trees.
(I; read; this book; T:while vacationing in the High Sierras) Context(I read,List([0, 6))):(I; read this book vacationing; L:in the High Sierras)
I read,List([0, 6))
I I
read read this book vacationing
this book T:while vacationing in the High Sierras
L:in the High Sierras