They were an Iberia McDonnell Douglas DC-9 flying from Palma de Mallorca to London and a Spantax Convair 990 from Madrid to London .
PRON AUX DET PROPN PROPN PROPN NUM VERB ADP PROPN X PROPN ADP PROPN CCONJ DET PROPN PROPN NUM ADP PROPN ADP PROPN .