wer

1. who (what person or people)
2. (colloquial) what, which (one) (see usage notes)
3. whoever, he who, someone who, the person who, anyone who (whatever person or persons)
4. (colloquial) somebody, someone; anybody, anyone (an unspecified person)

soll

first/third-person singular present of sollen

das

• Article

  nominative/accusative neuter singular of der: the

• Pron
• Conj

verstehen

1. to understand
2. to understand
3. to understand
4. to understand
5. to understand oneself, understand each other, be understood
6. to understand oneself, understand each other, be understood
7. to understand oneself, understand each other, be understood
8. to understand oneself, understand each other, be understood
9. to understand oneself, understand each other, be understood
10. to understand oneself, understand each other, be understood