FIRSTLY

Before
2: US
depends
3: USU
consider
After
1: S
there, through
2: US
because
3: USU
consider
3: UUS
introduced
Surrounder Phrases
depend upondepends uponachieved through, dependsconsider whetherexamine whetherconsidering whetherdiscuss whetherinvolves consideringwhether therebecause theredeveloped throughconsidered whetherupon whetherintroduced throughrequires consideringlies uponnote whetherthere liesconcerned whetherdefine whether