wir

we

verfolgen

1. to pursue, to follow, to hunt
2. to chase
3. to persecute
4. to trace
5. to haunt

nämlich

• Adj

  same, either the same object or sometimes just the same type of object

• Adv

aufmerksam

1. attentive, alert, observant
2. thoughtful, considerate, mindful

was

• Pron

  1. what
  2. which (referring to the entire preceding clause)
  3. that, which (referring to das, alles, etwas, nichts, and neuter substantival adjectives)
  4. (colloquial) that, which (referring to neuter singular nouns, instead of standard das)
  5. (colloquial) something, anything (instead of standard etwas)
  6. why (with emphasis, astonishment or disapproval)

• Det
• Adv

passiert

• Verb

  past participle of passieren

• Adj