Question: when was the first ford f 150 made
[{'answer': '1975', 'provenance': [{'wikipedia_id': '895409', 'title': 'Ford F-Series', 'start_paragraph_id': 25, 'start_character': 3, 'end_paragraph_id': 25, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Sixth generation (1973–1979).\n'}]}, {'provenance': [{'wikipedia_id': '895409', 'title': 'Ford F-Series', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5484841263913739404}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '895409', 'title': 'Ford F-Series', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 453, 'bleu_score': 0.8113032256013271, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5484841263913739404}, 'section': 'Section::::Sixth generation (1973–1979).\n'}]}, {'provenance': [{'wikipedia_id': '34957788', 'title': 'Ford F-Series (sixth generation)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['This generation also marks the introduction of the F-150 (introduced in 1975) which today is the most popular model.', 'This generation also marks the introduction of the F-150 (introduced in 1975) which today is the most popular model.']}}]}, {'provenance': [{'wikipedia_id': '34957788', 'title': 'Ford F-Series (sixth generation)', 'section': 'Section::::North American production.:Model history.:1976–1977.\n', 'start_paragraph_id': 11, 'end_paragraph_id': 11, 'meta': {'evidence_span': ['For 1975, the F-150 was introduced;', 'cab in a slightly shorter length, and competed with Dodge\'s Club Cab. For 1975, the F-150 was introduced; this truck was designed with a heavier GVWR (over ) and maximum payload. In 1975 (1976 model year), this familiar "split-grille" design was given a slight face lift to feature black accents around the headlights and a refined overall appearance. For the 1976 model year, a limited edition Bicentennial Option Group was offered on Custom styleside pickups, in either Wimbledon White or Bahama Blue, with a golden eagle stripe on the side, and red, white, and blue cloth inserts on the seats.']}}]}, {'provenance': [{'wikipedia_id': '895409', 'title': 'Ford F-Series', 'section': 'Section::::Sixth generation (1973–1979).\n', 'start_paragraph_id': 25, 'end_paragraph_id': 25, 'meta': {'evidence_span': ['In 1975, the F-150 was introduced in between the F-100 and the F-250 in order to avoid certain emission control restrictions.', 'In 1975, the F-150 was introduced in between the F-100 and the F-250 in order to avoid certain emission control restrictions.', "In 1975, the F-150 was introduced in between the F-100 and the F-250 in order to avoid certain emission control restrictions. For 1978, square headlights replaced the previous models' round ones on higher trim package models, such as Lariat and Ranger, and in 1979 became standard equipment. Also for 1978, the Ford Bronco was redesigned into a variant of the F-series pickup. 1979 was the last year that the 460 engine was available in a half ton truck."]}}]}]