het

• Article

  the (the neuter definite article)

• Pron

interessant

1. interesting, arousing or holding the attention of; fascinating
2. notable, important
3. profitable, beneficial

om te

1. to
2. in order to, for the purpose of

wat

• Pron

  1. what: e.g. (1) asking for a subject complement; (2) asking for a sentence object
  2. what: e.g. (1) as the object of a sentence; (2) ditto
  3. that: e.g. (1) modifying an indefinite pronoun like iets, niets, alles or het enige; (2) modifying an adjective that is used as a noun, usually a superlative
  4. which: e.g. (1) modifying the demonstrative pronouns dat and datgene; (2) referring back to an entire sentence
  5. something: e.g. (1) as subject; (2) as subject complement

• Det
• Adv

er

1. there (unspecific to distance)
2. it; him, her, them.

weggevallen

past participle of wegvallen

is

• Verb

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

• Adv

om

• Prep

  1. around, about
  2. at (a time)
  3. for (some purpose or object), concerning

• Adv
• Conj
• Adj