a tree of ~ 20_PRO_03_18 ~ a tree of ~ 20_PRO_11_30 ~ a tree of ~ 20_PRO_15_04 ~ ~~
 a tree of life ~ 20_PRO_03_18 ~ a tree of life ~ 20_PRO_11_30 ~ a tree of life ~ 20_PRO_15_04 ~ ~~
 is a tree of ~ 20_PRO_03_18 ~ is a tree of ~ 20_PRO_11_30 ~ is a tree of ~ 20_PRO_15_04 ~ ~~