This

Pronome

  means

Verbo

  that

Conxunción subordinante

  all

Determinador

  airports

Substantivo

  are

Auxiliar

  aerodromes

Substantivo

,  but

Conxunción coordinadora

  not

🚫

Partícula

  all

Determinador

  aerodromes

Substantivo

  are

Auxiliar

  airports

Substantivo

.

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.