Table:
year
single
peak positions
album

us aaa
us alt
us rock
bel
bel
can rock
mex air
ned

2008
taking the farm
-
-
-
-
-
-
-
-
wagonwheel blues

2011
baby missiles
-
-
-
-
-
-
-
-
slave ambient

come to the city
-
-
-
-
-
-
-
-

2012
best night
-
-
-
-
-
-
-
-

2013
red eyes
-
-
-
37
-
-
48
-
lost in the dream

2014
under the pressure
19
-
-
-
-
-
-
-

burning
-
-
-
-
-
-
-
-

eyes to the wind
-
-
-
-
-
-
-
-

2015
an ocean in between the waves
-
-
-
-
-
-
-
-

2017
thinking of a place
-
-
-
37
-
-
23
-
a deeper understanding

holding on
3
35
-
-
-
44
-
-

strangest thing
-
-
-
-
-
-
-
-

pain
1
-
49
-
-
46
-
-

up all night
-
-
-
-
-
-
-
-

2018
nothing to find
-
-
-
-
-
-
-
-

"-" denotes a recording that did not chart or was not released in that territory

Statement: in 2007, the war on drugs song "holding on", was released from the album a deeper understanding.
Question: in 2007, which album was relased by the war on drugs and had a song called "holding on"?
Answer: a deeper understanding