{ "reference": [ { "keyword": "P3", "context": "-0\u201d) 2\u201d Topper 77 1/2\u201d (6\u2019-5 \u00bd\u201d) 2 P1 V1 1 3 P2 4 P3 P4 MAIN DEVELOPMENT ID SIGNS 20\u2019 Triangle North H" } ] }