The first recorded strategic use of napalm incendiary bombs occurred in an attack by the US Army Air Force on Berlin on 6 March 1944 , using American AN-M76 incendiary bombs with PT-1 ( Pyrogel ) filler .
DET ADJ VERB ADJ NOUN ADP ADJ ADJ NOUN VERB ADP DET NOUN ADP DET PROPN PROPN PROPN PROPN ADP PROPN ADP NUM PROPN NUM , VERB PROPN PROPN ADJ NOUN ADP PROPN ( PROPN ) NOUN .