Customer No.129301 made an order on 1996/7/27, what was the delivery time for the first part of that order?
SUBTRACT(l_receiptdate, l_commitdate) WHERE o_orderdate = '1996-07-27' AND o_custkey = '129301';
SELECT JULIANDAY(T2.l_receiptdate) - JULIANDAY(T2.l_commitdate) FROM orders AS T1 INNER JOIN lineitem AS T2 ON T1.o_orderkey = T2.l_orderkey WHERE T1.o_custkey = '129301' AND T1.o_orderdate = '1996-07-27'