This

Pronom

  means

Verb

  that

Conjunció subordinada

  all

Determinador

  airports

substantiu

  are

Auxiliar

  aerodromes

substantiu

,  but

Conjunció coordinadora

  not

🚫

Partícula

  all

Determinador

  aerodromes

substantiu

  are

Auxiliar

  airports

substantiu

.

This means that all airports are aerodromes, but not all aerodromes are airports.

This means that all airports are aerodromes, but not all aerodromes are airports.