die

• Det

  1. that (masculine, feminine); referring to a thing or a person further away.
  2. those (plural); referring to things or people further away.
  3. (colloquial) a certain, a particular; some; this; referring to a thing or a person invisible or unknown to the audience.

• Pron

oplossing

1. solution (e.g. to a mathematical problem)
2. solution

is

• Verb

  third-person singular present indicative of zijn; is, equals

• Adv

niet

• Adv

  Not, no: used to express negation.

• Noun
• Verb

bijster

• Adj

  lost, missing

• Adv

efficiënt

efficient